Find f(4) for the following

f(4) is 2/7

Step-by-step explanation:

f(x) = f(4) = -2/-3(4) + 5

     = -2/-12 + 5

     = -2/-7 = 2/7

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.