Companies A and B provide housekeeping services. Company A charges 28$ for the first hour, and 10$ for every subsequent half hour. Company B charges 20$ for the first hour, and 12$ for every subsequent half hour. After how many hours will Company A be cheaper than Company B?

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

yes

step-by-step explanation:

the answer is 13/48

step-by-step explanation: