Two-thirds of the sum of three times a number and six is ten what is the number ?

X+ y = 5 ; x - y =3 solve using linear combination

What are the domain and range of the function f(x)=2^x+1

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