The length, l cm, of a sheet of paper is 29.7 cm, correct to the nearest millimeter. Complete the statement about the value of l.

Here are the solutions to the problems from the image: 8. The length, l cm, of a sheet of paper is 29.7 cm, correct to the nearest millimeter. Complete the statement about the value of l. To find the lower and upper bounds when a measurement is given to the nearest millimeter (which is 0.1 cm), we take half of the precision (0.1 cm / 2 = 0.05 cm). Step 1: Calculate the lower bound. Lower bound = 29.7 cm - 0.05 cm = 29.65 cm Step 2: Calculate the upper bound. Upper bound = 29.7 cm + 0.05 cm = 29.75 cm The value of l is between the lower bound (inclusive) and the upper bound (exclusive). 29.65 l < 29.75 9. Lucia invests 5000 at a rate of 4.5% per year simple interest. Calculate the value of her investment after 7 years. Step 1: Calculate the simple interest earned. The formula for simple interest is I = P × R × T, where P is the principal, R is the annual interest rate, and T is the time in years. I = \5000 × 0.045 × 7 I = \1575 Step 2: Calculate the total value of the investment. Total value = Principal + Interest Total value = \5000 + \1575 Total value = \6575 The value of her investment after 7 years is \6575. 10. Rectangle A measures 3 cm by 8 cm. Five rectangles congruent to A are joined to make a shape. Work out the perimeter of the shape. Each rectangle has dimensions: width = 3 cm, length = 8 cm. Let's trace the outer edges of the combined shape shown in the diagram. Step 1: Identify and sum the horizontal segments of the perimeter. There are three horizontal segments at the top of the shape: 3 cm (left), 8 cm (middle), 3 cm (right). There are three horizontal segments at the bottom of the shape: 3 cm (left), 8 cm (middle), 3 cm (right). Total horizontal perimeter = (3 cm + 8 cm + 3 cm) × 2 Total horizontal perimeter = 14 cm × 2 = 28 cm. Step 2: Identify and sum the vertical segments of the perimeter. There are two outer vertical segments on the far left: 8 cm (top) + 8 cm (bottom). There are two outer vertical segments on the far right: 8 cm (top) + 8 cm (bottom). There are four inner vertical segments where the central horizontal rectangle connects to the vertical rectangles. Each of these segments is 3 cm (the width of a rectangle). Total vertical perimeter = (8 cm × 4) + (3 cm × 4) Total vertical perimeter = 32 cm + 12 cm = 44 cm. Step 3: Calculate the total perimeter. Total perimeter = Total horizontal perimeter + Total vertical perimeter Total perimeter = 28 cm + 44 cm Total perimeter = 72 cm. The perimeter of the shape is 72 cm$. What's next?