Becky anderson can ride her bike to the university library in 20 minutes the trip home which is uphill takes 30 minutes if a rate is 8 mph faster on her trip there then her trip home how far does she live from the library

Step-by-step explanation:

We know that the formula for the distance is:

Where "V" is speed and "t" is time.

Let be:

: time of her trip from her home to the library.

: time of her trip from the library to her home.

: speed  on her trip from her home to the library.

: speed on her trip from the library to her home

We can identify that:

Since the distance she rode on the both trips are equal:

Solving for , we get:

Therefore, the distance for her home to the library is:

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.