What is the slope of a line perpendicular to the line whose equation is 3x + 3y = –27. Fully reduce your answer.

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

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Asalesperson has january sales of $20,000(1,$20,000) and april sales of $80,000 (4,$80,000). what is the rate of change?