The amount of shore at a local beach changes an average of -3/4 foot each year. What is the change in the amount of shore after 7 years?

Negative 5 and a Quarter.

Step-by-step explanation:

-3/4 × 7

= -21/4

= -5 1/4

6 on both sides and twelve on the top and the bottom

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.