what is the value of the expression 9 x 3 - 9 x 20 / - 5

Slope of (21, 45) and (84, 87)

How do you divide fractions in an easy way?

The sum of the heights of all the students in a class is 1,472 in. the mean height is 5 ft 4 in. how many students are there in a class

How much times does 73 go into 141

Trevor is a salesperson who earns a weekly salary and a commission that is 7% of his weekly sales

How do i find the zero of (x-10) (4x-3) = 0

A rectangle has a height of 5x and a width of x + 2, express the area of the rectangle.

Richard buys, fixes, resells small devices, like the Mir487, which consistently needs a transistor replaced. He can buy the transistor for $8.10 and a broken Mir487 for $51.90. Once fixed, he resells the new Mir487 for $224.96.

Keyla has one pizza. She wants to share her pizza with her 5 friends (and herself). How much pizza will each person receive.?

X^2-10x+21x2-10x+21