What is the image of (-6,0)(−6,0) after a dilation by a scale factor of \frac{1}{3}31​ centered at the origin?

Twelve less than a number is at most 20

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )

If you measured the width of a window in inches and then in feet with measurement would you have the greater number of units