Im confused, my question is how do you work out this question:

What do you add to 2 1/7 to make 4?

A research organization wanted to estimate the average number of hours a college student sleeps per night during the school year.

Martha made a rectangular blanket that had a perimeter of 18 feet it was 6 feet long how wide was it

What is the measure of one interior angle of a regular convex 31-gon?

Sean is a bookworm. On average, he reads pages in minutes. Sean's average unit rate for reading is pages per minute.

Jesse burns 365 calories during her yoga class. Round the number of calories to the nearest hundred and then estimate. About how many calories would Jesse burn after 6 yoga classes? A. 2,400 B. 1,800 C. 400 D. 240

Simplify the following expression. (3 + 8 x) + 7 x 3 + 15 x 18 x 18 + x 11 x + 7

Round 9 over 16 to 0 1/2 or 1

Diego measured the length of a pen to be 22 cm. The actual length of the pen is 23 cm Which of these is closest to the percent error for Diego's measurement? a. 4.3% b. 4.5% c. 95.7% d. 104.5%

You started with $25 in your pocket. You were lucky and found two dimes on the ground. You then bought a sandwich for $3.99 and an iced tea for $1.48. How much money do you have left?

Convert 0.265 to a percent round to the nearest tenth