The perimeter of a triangle is 53 ft. Find the value of x. Then find the length of each side.

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.