Simplify 20 k + 15 k -5k

What is the binomial expansion of (2x-3)^5

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.