Each day library book is kept past its due date a $.30 fee is charged at midnight which ordered pair is a viable solution of x repersents the number of days that a library book is late and u represents the total fee

answer   download the app called socratic on your phoner:

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.