Answer:
x^2+2x -6
Step-by-step explanation:
f(x)=2x+1
g(x)=x^2-7
(f+g)(x)= 2x+1+x^2-7
Combine like terms
= x^2+2x -6
-1x/-1 = 9/-1
the answer will be x =-9
Answer:
02a+.03b+.04c=126,
b=a+500,
c=3b
a=300., b=800., c=2400.
Step-by-step explanation:
88x0.25=22
Therefore, they would sell 22 more ice cream cakes in July.
