ITS 17 POINTS BUT OKAY
first for number 1 it’s in the graph shape line across !
Answer:
x= -1
Step-by-step explanation:
since y is -5 then we would put that in the second equation:
2x - 4(-5) = 18
then it’s:
2x + 20 = 18
Then we subtract 20 from both sides
2x = -2
Last we divide both by 2 and we get x = -1
Answer:
14,400
Step-by-step explanation:
multiply all variables when doing perimeter
Answer:
510
Step-by-step explanation:
Group and factor out the greatest common factor (GCF), then combine.