This is an equation involving x alone, so the most you can do is solve it:

For this equation, we can simply divide the box's total (124) by 4 servings. 124/4 = 31. So, there is 31 crackers per serving.
C
Explanation: Rewrite 18 as 3^2 * 2
REASON: Factor 9 out of 18
Rewrite 9 as 3^2
Pull terms out from under the radical
Answer: 3√2
It will take 6 weeks for Brad to get twice the amount as Sonya.
Sonya will have $260 dollars and Brad will have $360