Solve by the substitution method,
3x + 7y = 27
- 7x + y = 41

Orly uses 2 cups of raisins for every 12 cups of trail mix she makes. how many cups of trail mix will she make if she uses 8 cups of raisins?

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Paul can type 60 words per minute and jennifer can type 80 words per minutes. how does paul's typing speed compare to jennifer's