Answer:
3x+7=10x
Step-by-step explanation:
you are just adding 7+3 then you add the vairable term
He must get a 65 as a minimum grade on his third test to get an average of 70.
Equation is
85 + 60 + x
------------------- greater than or equal to 70
3
I think it might be 43.3in^2
Exponent hope this helps m8
