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?

Suppose that the price of a gallon of premium gasoline rose from $1.85 last week to $2.08 this week. What is the percentage change in price from last week to this week.

You have a restaurant bill of $46.32. if you are taxed 7.50% and decide to tip your server 20%, how much is your total? a. $59.75 b. $59.05 c. $58.92 d. $58.8

Prove that for all n ≥ 4 the inequality 2n < n! holds.

Find the equivalent fraction 3/7 = ?/21

The Thompson family has purchased a home for $74,500, making improvements of $5,000 for a fireplace, $1,500 for a new driveway, and $800 for painting. What is the adjusted basis of their home? (A) $76,000 (B) $81,000 (C) $81,800 (D) $82,000

Jerome walked mile in the morning and mile in the evening. How many miles did he walk in all?

In right triangle LMN, ∠N is a right angle and cos M = 4685. What is m∠L to the nearest degree?

O preço do diesel sofreu três alterações ao longo do último trimestre de 2017. A primeira alteração foi em outubro, cujo aumento foi de 10% no preço inicial do produto. Em novembro, houve um novo aumento, agora de 20%.

Find the number if the sum of 9 and a half equals 35

Find the square of - 3