Switch the parts on the right where it says “Multiplication property” and “subtraction property”
Solving for each equation:
A: True.

B: False.

C: True, given that y = 1

D: True, given that b = 6.66667

E: True.

The answer is 21.73684211
They should get $7.50, because you multiply the adults by two, then the children by three, and add it all together