Simplify the following expression.

7(7y + 3z) - 21z
A.
14y
B.
49y
C.
14y - 42z
D.
49y - 24z

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?

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