im not sure about the first one but im 100% about 2 and 3
2-A
3-D
Answer:
14.77
Step-by-step explanation:
Are you not able to use a calc? I can sketch out the long division if you need it!
Substitute y = 1/5 x + 1 into x + 5y = -15
x + 5y = -15
x + 5(1/5 x + 1) = -15
x + x + 5 = -15
2x = -20
x = -10
Plug in x = -10 into y = 1/5 x + 1
y = 1/5 (-10) + 1
y = -2 + 1
y = -1
(-10 , -1)
Answer is the last one
(-10 , -1)