If Marco's contribution is a percentage of the total cost, where p represents that percentage written as an equivalent decimal, represent the total cost of Marco's coverage in terms of d and p.

Step-by-step explanation:

Given

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Required

Express total in terms of d and p

Let the total cost be represented with T.

Since he pays d out his total earnings, T. Then the expression for p is:

This gives:

Multiply both sides by T

Divide both sides by p

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.