Lincoln owns a small business selling used books. He knows that in the last week 21 customers paid cash, 28 customers used a debit card, and 11 customers used a credit
card.
Based on these results, express the probability that the next customer will pay
with
cash or a credit card as a percent to the nearest whole number.

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!

hreryryrranswer:

step-by-step explanation:

explanation:

step-by-step explanation: