The problem states that a profit of 23% was made on an article bought for ₦4,800.00. We need to find the selling price.

Right Chiomzy, let's go. Problem 9b: Step 1: The problem states that a profit of 23% was made on an article bought for ₦4,800.00. We need to find the selling price. Step 2: The cost price (CP) is ₦4,800.00. The profit percentage is 23%. Step 3: The selling price (SP) can be calculated as CP + (Profit % of CP). Step 4: Calculate the profit amount: Profit amount = 23\% of ₦4,800.00 = (23)/(100) × 4800 Profit amount = 23 × 48 = ₦1,104.00 Step 5: Calculate the selling price: Selling Price = Cost Price + Profit amount Selling Price = ₦4,800.00 + ₦1,104.00 = ₦5,904.00 The selling price was ₦5,904.00. Problem 10b: Step 1: The problem states a man bought a textbook for ₦1,680.00 and sold it for ₦1,200.00. We need to find his percentage loss. Step 2: The cost price (CP) is ₦1,680.00. The selling price (SP) is ₦1,200.00. Step 3: Since SP < CP, there is a loss. Calculate the loss amount: Loss = Cost Price - Selling Price Loss = ₦1,680.00 - ₦1,200.00 = ₦480.00 Step 4: Calculate the percentage loss using the formula: Percentage Loss = LossCost Price × 100\% Percentage Loss = (480)/(1680) × 100\% Step 5: Simplify the fraction: Percentage Loss = (48)/(168) × 100\% = (12)/(42) × 100\% = (2)/(7) × 100\% Step 6: Calculate the percentage: Percentage Loss = (200)/(7)\% ≈ 28.57\% His percentage loss is 28.57\%. Problem 11b: Step 1: The problem asks to evaluate sqrt(3(1)/(16)). Step 2: First, convert the mixed number to an improper fraction. 3(1)/(16) = ((3 × 16) + 1)/(16) = (48 + 1)/(16) = (49)/(16) Step 3: Now, substitute this improper fraction back into the square root expression: sqrt((49)/(16)) Step 4: Apply the property of square roots that sqrt((a)/(b)) = sqrt(a)sqrt(b): sqrt(49)sqrt(16) Step 5: Calculate the square roots of the numerator and the denominator: sqrt(49) = 7 sqrt(16) = 4 Step 6: Substitute these values back to get the final fraction: (7)/(4) Step 7: Convert the improper fraction to a mixed number (optional, but often preferred for final answers): (7)/(4) = 1(3)/(4) The value is 1(3)/(4) or (7)/(4). Problem 12b: Step 1: The problem asks to find the average of the data set: 15, 25, 5, 45, 55, 65. Step 2: The formula for the average (mean) is the sum of all values divided by the number of values. Step 3: Sum the given values: Sum = 15 + 25 + 5 + 45 + 55 + 65 Sum = 40 + 5 + 45 + 55 + 65 Sum = 45 + 45 + 55 + 65 Sum = 90 + 55 + 65 Sum = 145 + 65 = 210 Step 4: Count the number of values in the data set. There are 6 values. Step 5: Divide the sum by the number of values: Average = (210)/(6) Average = 35 The average of the data is 35. What's next? 📸