PLEASE HELP ME PLS GIVING BRANLIEST

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?

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum