If p: all birds fly. what is ~ p?

a. some birds fly

b. birds always walk

c. not all birds fly

d. none of the above

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.

answer is c

step-by-step explanation:

81/12=324/x

x=48