The table shows how the number of pepperoni slices used depends on the number of pizzas made. Enter an equation that describes the pattern shown in the table. Pepperonis used Pizzas, x 2 3 5 9 Pepperoni slices, y 34 51 85 153 The equation for this pattern is y = (write down the equation)

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?