12 cm u just add up all the sides
We are given two bases as 3 and 11
altitude is 8
formula for area of trapezoid is given by

here a and b are two bases and h is height
plugging the given values we get
=56
Area of trapezoid = 56 unit square
Part A: Coefficient: either 7.50 or 0.20
Part B:
7.50 (25) + 0.20 (300) + 40
187.50 + 60 + 40 = $287.50
Part C: After her raise, the first term will change from 7.50h to 9h
Answer:
x = 0
Step-by-step explanation:
its symmetrical from side to side not up and down