50 POINTS PLEASE HELP 3 QUESTIONS

1. Amy weighs 87 pounds and wants to gain weight. After 6 weeks she weighs 99 pounds. What is her average rate of change?

2. In 2014 Brad was 146 cm tall. He grew to be 181 cm tall by the year 2021. What was Brad's rate of growth over this period?

3. A retail store is having a sale on toilet paper. At 4:00 pm, the store has sold 15 packs of toilet paper. At 7:00 pm, the store discovers it has sold 57 packs. What is the average rate of change between these hours?

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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!

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step-by-step explanation:

it is a secret for it not to be compromised sorry

step-by-step explanation: