0-449 is the most reasonable bc of how much the shipping costs
5. D (the number under the square root symbol must be greater than or equal to 0.
I can’t see it if you send a photo I can help
V=B+15
V+2B=180
Therefore:
3B+15=180
B=55
V=70
Check:
V+2B=180
70+2(55)=180
70+110=180
180=180. Checks.
Addition will be the last operation
