Find the circumference of each circle. Use your calculator's value of 1. Round your answer to
the nearest tenth for

25.1

Step-by-step explanation:

area = pi x r x r

r x r = 50.3 / pi = 16.0109

r = 4.00137

circumference = pi x 2 x r = pi x 2 x 4.00137 = 25.141

2/3x + 7 = 29

step-by-step explanation:

two thirds = 2/3

plus a number = x

at least 29 = 29

there for you should get 2/3x + 7 = 29

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.