1. Answer is b.
2. Answer is c.
3. Answer is a.
Area of triangle = 1/2 x base x height:
78 = 1/2 x base x 9 3/4
Multiply both sides by 2:
156 = base x 9 3/4
Divide both sides by 9 3/4:
Base = 16 inches
First line going down is y=2x+4
Second one going / this way is y=-1x-1
F=21 (A)
I hope this was helpful
The answer is 13
25/100 X 80/1
25/10 X 8/1
25 X 8 = 200
200 divided by 10 is 20
20/100 X 65/1
20 X 65= 1,300
1,300 divided by 100 is 13
I made them into fractions.
These were the steps^ :D