There are 91 oranges in a basket. If 2/7 of the oranges are bad, how many are good? If P - 3/8 = 5/8, find P. Express 15 cm as a decimal of 1 km. If 9.8 X 1.89 = 18.522, find 98 X 189.

Step 1: Calculate the number of bad oranges. Total oranges = 91. Fraction of bad oranges = (2)/(7). Number of bad oranges = (2)/(7) × 91. (2)/(7) × 91 = 2 × (91)/(7) = 2 × 13 = 26 There are 26 bad oranges. Step 2: Calculate the number of good oranges. Number of good oranges = Total oranges - Number of bad oranges. 91 - 26 = 65 There are 65 good oranges. Step 3: Compare with the given options. The calculated number of good oranges is 65, which corresponds to option C. The final answer is C. 65. --- Step 1: Isolate P in the equation. The given equation is P - (3)/(8) = (5)/(8). To find P, add (3)/(8) to both sides of the equation. P = (5)/(8) + (3)/(8) Step 2: Add the fractions. Since the fractions have the same denominator, add the numerators. P = (5+3)/(8) = (8)/(8) Step 3: Simplify the result. P = 1 Step 4: Compare with the given options. The calculated value of P is 1, which corresponds to option C. The final answer is C. 1. --- Step 1: Convert 1 km to cm. We know that 1 km = 1000 m. We also know that 1 m = 100 cm. Therefore, 1 km = 1000 m × 100 cm/m = 100,000 cm. Step 2: Express 15 cm as a decimal of 1 km. This means we need to find the value of 15 cm1 km in decimal form. 15 cm100,000 cm = (15)/(100,000) Step 3: Convert the fraction to a decimal. (15)/(100,000) = 0.00015 Step 4: Compare with the given options. The calculated value is 0.00015, which corresponds to option D. The final answer is D. 0.00015. --- Step 1: Analyze the relationship between the given multiplication and the required multiplication. We are given 9.8 × 1.89 = 18.522. We need to find 98 × 189. Step 2: Express 98 and 189 in terms of 9.8 and 1.89. 98 = 9.8 × 10 189 = 1.89 × 100 Step 3: Substitute these expressions into the required multiplication. 98 × 189 = (9.8 × 10) × (1.89 × 100) Rearrange the terms: 98 × 189 = (9.8 × 1.89) × (10 × 100) Step 4: Use the given information to calculate the product. We know 9.8 × 1.89 = 18.522. We also know 10 × 100 = 1000. 98 × 189 = 18.522 × 1000 Step 5: Perform the final multiplication. Multiplying by 1000 shifts the decimal point three places to the right. 18.522 × 1000 = 18522 The final answer is 18522. 3 done, 2 left today. You're making progress.