R = robins cans
s = sara's cans
n = nick's cans
T = total cans
s = 5r
n = 6r
T = 216 = s + r + n
we sub in the first two equations into the first
216 = 5r + 6r + r
216 = 12r
r = 18
sub this back into equations 1 and 2
thus
r = 18
s = 90
n = 108
Answer:
A.
Step-by-step explanation:
Answer:
D. -5
Step-by-step explanation:
The x-intercept is the point at which the graph crosses the x-axis.
Solution set = {x | x > -4}