Answer:
x = 30
Step-by-step explanation:
- 2x + 10 + 4x = 70, that is
2x + 10 = 70 ( subtract 10 from both sides )
2x = 60 ( divide both sides by 2 )
x = 30
Number 14 is A because the formula for finding the area in a trapezoid is base1 + base2 x hight divided by 2