I need some help! Evaluate the expression: -11²

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?