SOMEONE PLEASE HELP??

PLEASE HELP ?

Which of the following visual aids are the most fundamental in presentations?

A: data tables

B: Microsoft® PowerPoint presentations

C: charts and graphs

D: facial expressions, gestures, and body language

cut 138 centimeters off

step-by-step explanation:

250-112 = 138

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