Answer:
<u>4 hours</u>
Step-by-step explanation:
Equations :
Larry : <u>y = 20x + 90</u>
Barry : <u>y = 30x + 50</u>
Equate both to find the number of hours at which they both charge the same :
98
As it is a little bit of a few questions about the other one I have to the store go back tomorrow and will get back tomorrow and I have been working
a equal to c 25 b greater than