Answer:

Step-by-step explanation:
Area of rectangle= Length*Width
so
multiply each coefficient of a times 4a^2
then take a^2 common factor so it will be
=area
The answer is geometric because its increasing by 7 each time
Answer: 5.5
Step-by-step explanation:
3m+13=29.5
Answer:
C
Step-by-step explanation:
(f + g)(x) = f(x) + g(x) , thus
f(x) + g(x)
= 2x + 1 + x² - 7 ← collect like terms
= x² + 2x - 6 → C