17. Area of triangle: 1/2bh
1/2 * 12 * 15
1/2 * 180
=90 cm^2
18. Area of trapezoid: 1/2 h (b1 + b2)
1/2 * 8 ( 12 + 15.4)
4 * 27.4
= 109.6 cm^2
Answer:
$51.2
Step-by-step explanation:
If you subtract 64 to 20% then you end up with $51.2
It is 860.4 because if you multiply it in the calculator you will get the answer. So you put in 71.1 times 12 and you get 860.4.
Answer:
B
Step-by-step explanation:
because the equation when you get it is the number you divide with