64 + __ = 8 (8+4) The underscore is a blank I’m not sure how to do this

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?

If g^-1(x) is the inverse of g (x) which statement must be true

Which function has the domain x> -11? y= x+ 11 +5 y= x-11 +5 y= x+5 - 11 y= x+5 + 11