How do you get the answer for 2/3 x 5=

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

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

3x + 4y = 5 x- 3y = -7 solve by substitution