Ellema knows that 1/5 written as a decimal is 0.2. How can Ellema use this information to find the decimal form of 9/5 without dividing 9 by 5?

Taking algebra two apex courses and need with these questions

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=