Answer:
A = 45 units^2
Step-by-step explanation:
This is a trapezoid
A = 1/2 (b1+b2) h
b1 is the top = 7
b2 is the bottom = 11
h = 5
A = 1/2 ( 7+11) *5
A = 1/2 ( 18)*5
A = 45 units^2
STEP - BY - STEP EXPLANATION
Given:

Step 1
Suppose x= -3, then
x+ 3
Step 2
Divide the polynomial by (x+ 3)
Step 3
Determine the remainder and quotient from the above.
Quotient = x²+ x - 3
Remainder = 13
ANSWER
Quotient = x²+ x - 3
Remainder = 13