At a store, a hat has a regular price of a dollars. during a sale, the price of that hat is discounted by 20%.the expression 0.8x describes the discounted price in dollars of the hat?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2