A(n)= -6-4(n-1) whats the 4th term in the sequence?

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?

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?