Simplify
3x-2y=21
4x-5y=5
If p=m/2-n²/5m
1. Make n the subject of the relation.
2. Find, correct to 3 significant figure, the values of n where p=14 & m=-8.
If Log10 y + 3Log10 x = 2, Express y in terms of x.

The bolo cavern outside of vandalia is 421 ft below sea level. a little more than75 miles away. mt owens is 7295 feet above sea level. what is the difference in elevation between the bolo cavern and mt owens?