5. Simplify the expression: 2(10) + 2(x-4)
A) 2x + 16
B) x + 12
C) 2x + 12
D) x + 16

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Given the equation y − 4 = three fourths(x + 8) in point-slope form, identify the equation of the same line in standard form. −three fourthsx + y = 10 3x − 4y = −40 y = three fourthsx + 12 y = three fourthsx + 10

A50% increase followed by 33 1/2% decrease