Which statement can be represented by the equation 18+m-7.2? A number, m, less than 18 is seven point two.

Eighteen decreased by a number, m, is seven point two.

A number, m, divided by 18 is seven point two.

Eighteen divided by a number, m, is seven point two.

Eighteen decreased by a number, m, is seven point two.

Step-by-step explanation:

18+m=7.2

m=7.2-18

m= -10.8

18+(-10.8)

18-10.8=7.2

Eighteen decreased by a number m is seven point two

D

Step-by-step explanation:

Eighteen divided by a number, m, is seven point two.

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a