If the rectangle above has an area of 20, what is the length of side ab?

Which term best describes the association between variables a and b

Nine more than four times a number is the same as one less than twice the number. find the number?

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32