If f(x)=x^2-2x+3 which of the following is equal to g(x)=f(x+1)

Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

Math question.. plz me .. best answer all