D 24 do order of operations perenthesis, exponents, multiplication or division, addition or subtraction
Alvin's age + Elga's age = 84
2R + R = 84
3 R = 84
3/ 3 R = 84/ 3
R = 28
Elga's age is 28
The answer is 1. That was easy because any number to the power of 0 is just 1.
