What is the area of this circle in terms of pi?
8 cm?
16 cm
32 cm
64 7 cm
r = 4 cm

16 cm

Step-by-step explanation:

If one part of the diameter is 4 then the other half of it would be 4 then multiply 2 more times.

29.5977692753

step-by-step explanation:

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.