derrick worked for 3 hours and earned a total of $28.50. Which equation can be used to find r the ammount of money derrick earns per hour?

r = 9.50x

Step-by-step explanation:

First, we need to find how much money Derrick earns per hour. To do that, we divide how much money he earned by the three hours that he worked:

So every hour, Derrick makes $9.50. Now that we know the hourly rate, we can make an equation that will always tell us how much money he makes (r), given the hours (x):

CHECK:

Let's check our answer. Since we have the equation, let's see if in 3 hours, Derrick actually earned $28.50:

The equation works! By substituting the number of hours, we got the right answer.

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.

i wish i could u

step-by-step explanation:

i wish i could u