Atriangle with vertices at a(0, 0), b(0, 4), and c(6, 0) is dilated to yield a triangle with vertices at a′(0, 0), b′(0, 10), and c′(15, the origin is the center of dilation. what is the scale factor of the dilation?

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?

Find the slope of the line that passes through the points (-2, 4) and (-5, -6). -2/7 10/3 -2/3

The salesperson earns a 5% commission on the first $5,000 she has in sales. the salesperson earns a 7.5% commission on the amount of her sales that are greater than $5,000. this month the sales person had $8,000 in sales. what amount of commission, in dollars, did she earn?