Find the value of the radius, x ,to the nearest tenth.

a. 3.8
b. 4.2
c. 5.4
d. 3.6

find the value of the diameter, y.
a. 10.8
b. 7.2
c. 7.6
d. 8.4

Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9

Ineed to know how to write question one in mathematical terms

The distance a bicycle travels with each turn of its wheels is about 3 1/7 times the tire diameter. the tires on mike’s bicycle have a diameter of 24 1/2 inches. how far does it travel with each turn of the wheels?