Which equation is an identity?
a.8x +9= 8x – 3
b.7x – 2 = 8x +4- 2
c. 11 – (2x + 3) = -2x – 8
d.5x+8 - x = 6x – 2(x – 4)

Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions

One positive number is 9 more than twice another. if their product is 95, find the numbers

Which represents the solution set of the inequality 5x-9 < 21? a. x < 12/5 b. x > 12/5 c. x > 6 d. x < 6