D. 64x^9 This is because 4x^3 is the side length and you substitute it into l^3 and you get (4X^3)^3 (4X^3)^3 is the same as (4X^3) x (4X^3) x (4X^3) 1. (4X^3)^3 2. (4X^3) x (4X^3) x (4X^3) 3. (16X^6) x (4X^3) (remember when multiplied, exponents get added to each other) 4. 64X^9 After multiplying all three of those you get 64X^9 D. Hope this helps
In order to get this answer, first you divide the whole number by 2. Then you get the number 225. You then have to subtract 50 from 225 because John gets 50 more than Andrew. Then for John, you have to add 50 to 225. To self-check the answer, here is the formula: 175+275=450. Remember that on these kind of word problems, you first divide the whole. Then subtract and add the number that one person gets more than the other person.