F(x) =2x+1 g(x)= x^2 -7 find (f+g)(x)

need help like asap

Pelle's sister is three years older than pelle the father is 5 times as old as pelle the mother was 28 when the sister was born altogether they are 98 years old how old is pelle?

Answer this question only if you know the answer! 30 points and

Diana is painting statues she has 7/8 of a liter of paint each statue requires 1/20 of a liter of paint how many statues can she paint?