Which expression shows 7+21 written as a product of two factors? (A)3(1+7)
(B)3(3+7)
(C)7(3+3)
(D)7(1+3)

In what form is the following linear equation written y=9x+2

The graph shows the charges for a health club in a month. make a function table for the input-output values. writes an equation that can be used to find the total charge y for the number of x classes

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25