Answer:
5398
Step-by-step explanation:
7715-2212+10-(5x23)
7715-2212+10-115
5503+10-115
5513-115
5398
Answer:
Step-by-step explanation:
discriminant=5²-4×1×7=25-28=-3<0
no real number solution.
Mr. chang paid the least because 10% off 25 is more than 20%off 30
62$ (earns of 1 week) multiplied with 52 weeks (how often he earns the 62$) is 3224
7 and 6 and the LCM would be 42
