Mr. Dodson is having the exterior of his house painted. The painters charge
$35 per hour plus the cost of materials.
After 20 hours of work, Mr. Dodson
owes the painters $840. Assume the
relationship is linear. Find and
interpret the rate of change and the
initial value.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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step-by-step explanation:

sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation: