How can i simplify - 9 (1-10b) + 7 (2b-11)

Amal says that 1/4 of rectangle is shaded, cadence says that 1/2 of rectangle is shaded, Jim says that 1 rectangle is shaded. describe what each student used as the whole.

In the 99-story house there is an elevator with two buttons only. If you click on the first button, you will go 7 floors up, if you click on the second one then you go 9 floors down. How can you get from the first floor to the 72nd?

Lisa built a a rectangle garden that is 4 feet wide and has a perimeter of 26 feet. What is the length of Lisa's flower garden

Would the function y=6/x have the same domain and range as y=8/x or y=12/x

You have two credit cards one has a balance of $3745 at a 6.25% APR and the other has a balance of $1045 and is dependent upon your credit score your score is 500 how much total interest is occurred in the first month

A right triangle has legs that are 19 in. and 23 in. What is the area of the triangle

What equation results from completing the square and then factoring x2+4x=12

In two years the value of a car chnaged from 14,000 to 11,200 what is the percent of change

What is the difference 4 1/3 - (-2/3)

Elaine is painting a fence. she knows that she needs 1 gallon of paint for each 10 feet of fencing. The fencing will enclose a rectangular yard that is 3 yards long and 2 yards wide. how much paint does Elaine need?