Answer:
x=-1
y=-5
Step-by-step explanation:
(7x+y)-(x+y)=-6
6x=-6
x=-1
-1+y=-6
y=-5
Answer:
x < -2.5
Step-by-step explanation:
N/A
The new price is 52.50
30x2=60
30/4=7.5
7.5x3=22.5
22.50+30= 52.50
Answer:
0
Step-by-step explanation:
-0.1(40)^2+4(40)
-160+160
0
Answer:
52.70
Step-by-step explanation:
49.95x.055=2.75 tax
49.95+2.75=52.70 total costs