Which number should each side of the equation 45x=8 be multiplied by to produce the equivalent equation of x = 10? -4/5
1/5
5/4
5

Please answer FAST!!!

Acircular hot tub located near the middle of a rectangular patio has a diameter of 48 inches. the patio measures 11 feet by 6 feet. what is the area of the patio that is not covered by the hot tub?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it.find the area of the sidewalk.