Ahouse painting company charges $376 plus $12 per hour. another company $280 plus $15 per hour. a. how long is a job for which both companies will charge the same amount? b. what will the cost be?

For company a ( $376 + $12 an hr) it would take 2 hours because 376+12= 388+12= 400 (376 + (12 x 2) )

for company b, ( $280 + $15 ) it would take 9 hours because 280 + 15 = 295 + 15 =
310 + 15 = 325 + 15 = 340 + 15 = 355 + 15 = 370 + 15 = 385 + 15 = 400 (280 + (15 x 8))

376 x (12 x 2)
376 x 24 = 400

280 x (15 x 8)
280 x 120 = 400

1) a = 2 hrs
b = 8 hrs

2) $400