Your question doesnt quit make sence .
Answer:
B is the correct answer
Step-by-step explanation:
You can use a graphing calculator to help with these kind of questions, Desmos is a good graphing calculator
Answer:
What rectangle?
Step-by-step explanation:
Y = -5x + 9
y = 5x + 7
5x + 7 = -5x + 9
5x + 5x = 9 - 7
10x = 2
x = 2/10 reduces to 1/5
y = 5x + 7
y = 5(1/5) + 7
y = 1 + 7
y = 8
solution is (1/5,8)
There would be an 85% change, you just add then divide them and you get 85% as your answer.