4 (x-5) = 4x-20

solve this equation, and how many solutions are there?

fred purchased 6 shirts on friday. kyle purchased 4 shirts and a pair of shorts for $25. they paid the same amount for each shirt. write an equation that could be used to determine t, the cost of one shirt.

What is two and a half times two thirds

An equilateral triangle and a regular pentagon have the same perimeter. Each side of the pentagon is 3 inches shorter than each side of the triangle. what is the perimeter of the triangle?

Find the following for the function f (x) = 3x2+2x-2. (a) f (0) =

What is a verbal expression for 2m

Write each sum using summation notation 12 + 22 + 32 + 42 + ⋯ + 10000^2

A bicycle has a listed price of $519.95 before tax. If the sales tax rate is 9.75%, find the total cost of the bicycle with sales tax included.

A bridge is 440 yards long. A scale drawing has a ratio of 1 inch = 1 yard. How long is the drawing?

Employees that work at a fish store must measure the level of nitrites in the water each day. Nitrite levels should remain lower than 5 ppm as to not harm the fish.

The green (upper) triangle has an area of. the purple (lower) triangle has an area of. place the orange triangle (square symbols) directly next to the green triangle so that the two triangles together make a rectangle.