F(x)= 2/3x+3, what is the value of f(12)

Which expression gives you the distance between the points (5,1)and(9,-6)

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0