Answer:
A) 5x + 2y = 13
B) -9x + 7y = 19 We'll multiply equation A) by -(7/2)
A) -35/2 x -7y = -(91/2) then we'll add equation B)
B) -9x + 7y = 19
-53/2x = -53/2
x = 1
2y = 13 -5
y = 4
Step-by-step explanation:
Answer:
60
Step-by-step explanation:
Domain- from left to right.: Range- from top to bottom.
It would be 50 times 0.075=3.75 sales tax and add that to the cost of the earrings =$53.75