Find the circumference of the circle. Use 3.14 for π. Round to the nearest tenth if necessary.

A.
34.8 cm

C.
32.1 cm

B.
21.7 cm

D.
28.3 cm

D

Step-by-step explanation:

Multiply 2 times 3.14 times the radius, which is half the diameter. So divide 9 in half to get 4.5 as the radius. 2 times 3.14 times 4.5 equals 28.29. Round up to the nearest tenth equaling 28.3.

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.