Answer:
4
Step-by-step explanation:
Hope this help
Answer:
B
Step-by-step explanation:
Combine like term.
Hers 7x and (-5x) are like terms
7x + 4x² - 5x = 7x - 5x + 4x²
= 2x + 4x²
Answer:
5
Step-by-step explanation:
12-7 is 5 x is 5
y=5x is proportional.
when you plot it on a graph, the ordered pairs are
(0,0) (1,5) (2,10) (3,15).....
which is proportional