Answer:
5
Step-by-step explanation:
10 and log5 cancel, because they're inverse operations.
The equation is linear, as you can write

An integrating factor would be

Multiplying both sides of the ODE by this yields

where the LHS is a derivative:
![\dfrac{\mathrm d}{\mathrm dx}\left[x^{1/3}y\right]=4x^{1/3}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Cmathrm%20d%7D%7B%5Cmathrm%20dx%7D%5Cleft%5Bx%5E%7B1%2F3%7Dy%5Cright%5D%3D4x%5E%7B1%2F3%7D)
Integrating both sides, we get


Drinks cost $1 and Sandwiches cost $8
2x+5=47, solve algebraically to find x, the answer
199 is greater than 190, and less than 200.