Answer:
6 more cups
Step-by-step explanation:
x = 13
y=50
50 = 5x - 15
50 + 15 = 5x
65 = 5x
65/5 = 5x/5
13 = x
B) {(−2, −3), (−3, −2), (2, 3), (3, 2)}
each input of x (-2), (-3), (2), (3) does not have duplicated output value