The equation of the regression line for the data in the table is y=4.7x- 179, where x represents the height and y is the predicted walking speed. What is the meaning of 4.7 in the equation?

At his new job, jeremiah can choose an hourly rate of $9 plus a $50 weekly bonus for opening the store, or an hourly rate of $10 per hour with no opening bonus. the equations model his salary options. y = 9x + 50 y = 10x

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

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.