Combining Like Terms and Distribute

The expression 20a + 13c is the cost for a adults and c students to enter the Miami Science Museum.

Find the total cost for 4 adults and 24 students.

Evaluate when a = -4 and b = -1

Evaluate for x = −4 and b = −2

Evaluate for x = 5 and y = −10

You earn 8x + 7y dollars for working x hours at a restaurant and y hours at a bus station. How much do you earn for working 12 hours at the restaurant and 16 hours at the bus station?

Evaluate when x = 2 and y = −3

What is the perimeter of a square that has a side length of 7c + 2/9 ?

An equilateral triangle has a perimeter of 12n + 24.

What is the length of one side of the triangle if n = 0.5?

What is the perimeter of a rectangle that has an area of 24r and a length of 6r?

A rectangle has an area of 15f and a length of 3.

What is the perimeter of the rectangle?