Answer:
B.
Step-by-step explanation:
So you have to find the base of the trapezoid.
12 + 6 + 2 = 20

Answer: -100 + x = 40
Step-by-step explanation: We know she starts at -100 feet, she is increasing in elevation, so we want to add a positive x to her initial value of -100. If we keeping adding that x, it will soon result in a positive value of 40.
It is called a complex number.
Answer:
He needs 9 pages
Step-by-step explanation:
8 will be full and 1 will have 2 extra
36 divided by 4
8 with 2 left over so 9 pages