Students in an art class make square tiles that are 5 inches long. How many tiles will the students need to make.

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29