Which of the following statements correctly illustrate the addition property of equality?
check all of the boxes that apply.
0 if a = b, then a + c = b + c.
if x = y, then x + 2 = y-2.
if w+ 2 = 7, then w + 2-2 = 7-2.
02
if ze =9, then z- + =9- .
22 ?

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

the answer would be c:   ax + b = ax + c

step-by-step explanation:

the linear relationship that represents a variation in direct proportion is the linear function that varies according to the numbers of its domain, for example the cost of producing x number of items can be represented in direct proportion by f (x) = mx + b, where m is the constant of proportionality, x the number of articles produced and b the fixed cost