Pls help me 10 points

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8