42 inches squared
base times height divided by two
7x12 divided by two is 42
Answer
3.5
Step-by-step explanation:
y < 2x - 3 = 3.5
2x is greater than y and y is an unknown value you can solve this by using a two step equation
First factor the equation
(x-10)(x+2) = 0
Then solve for (x-10) and (x+2)
x=10
x=-2
Answer:

Step-by-step explanation:
The function is given.

To find : 
The input for the function f(x) is (a + 1).
Replace x with (a + 1).

Expand brackets.

Simplifying.

Answer:
first find the area of the big rectangle = 12×14=168
area of the small unshaded rectangle =2×5×6=60
area of the shaded region = 168-60=108