Roberta has $50 in her purse. The money she has left over after buying two boxes of cookies is given by the equation 50 − x = 38, where x represents the cost of two boxes of cookies.

The cookies cost $6 each, and $12 altogether.

Step-by-step explanation:

50-38=12, or x

he has now walked a total of what?

if i know what this is maybe i can

step-by-step explanation:

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph