For her phone service, melissa pays a monthly fee of $21, and she pays an additional 0.07 cents per minute of use. the least she has been charged in a month is $107.66. what are the possible numbers of minutes she has used her phone in a month use him for the number of minutes and saw your in equality for m.

if x decreases by 4 then y increases by 10

step-by-step explanation:

x

step-by-step explanation:

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!