Square root of 10 times square root of 8

Charlie is a car salesman he earns $800 plus a 9% commission on all of her sales for the week if charlie receive the payment for $1960 this week how much where is total sales

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left