The length of a rectangle is twice its width. the perimeter of the rectangle is 24 inches. write a system of equations in 2 variables. use substitution to solve the problem.

equation 1:
equation 2:
what is the area of the rectangle?

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

Aphrase is shown read the phrase and give me the answer