Which of the following expressions is 8x + 16 not equivalent?

a. 2x + 5 + 6x + 11
b. 10x - 2x - 20 + 4
c. 2(4x+8
d. 8(x + 2)

B

Step-by-step explanation:

if we solve it

10x-2x means 8x and -20+4 means -16...

and other answer are correct.

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

$15 each

step-by-step explanation:

$45/3 children= $15 each