Answer:
A = 84 
Step-by-step explanation:
To find the area of a trapezoid, use this equation:

a = top base
b = bottom base
h = height
Let's classify all the sides:
a = 4 ft
b = 10 ft
h = 12 ft
Now, let's plug all these into the equation:

Add what's in the numerator
Divide 14 by 2
A = 84
Multiply 7 by 12
So, the area of the trapezoid is 84
.
Hope this helps!!
Answer:
53.76
Step-by-step explanation:
B x W x H and divide by two is your answer.
Answer:
Radius x radius x 3.14 / 2 = area of semicircle
5 x 5 x 3.14 = 78.5
don't divide because there is two semicircle
22-10=12
12 x 10 = 120
120 + 78.5 = 198.5 cm squared
Step-by-step explanation:
14.50 + 9.99 + 48 is 72.49 and the sales tax which is 8.2 when turned into a decimal is .082 so next you multiply 72.49 with 0.082 and your tax will be 5.94418 now you add 72.49 with 5.94418 and you will get 78.43418 now you need to round to the nearest cent which is gonna be 418 rounded into 43 but the 4 in the thousandths place is not the number 5 or bigger so you cant round up so it stays as 78.43 so A or 78.43 is your answer