Answer:
B. (5,-2)
Step-by-step explanation:
Plug in X and Y, verify accuracy
A+b=13
a-b=7
add the two equations using system of equations
2a=20
a=10
10+b=13
b=3
16.
1,200*.1=120
1200-120= 1080
1080
17.
199.95*.3=59.99 (rounded)
199.95-59.99=140
140
18.
5700*.6=3420
5700-3420=2280
2280
19.
7000*.5=3500
7000-3500=3500
3500
Answer:
1/x^24
Step-by-step explanation:
(1/x^8)^3
1/x^24
