1. A 100-foot sandwich is cut into 2 pieces (a and b). Piece a is 2ft less than 5 times the length of piece b. (a) What is the system of equations that models this situation?
(b) Solve the system of equations. How long in piece a and piece b?
Full sentence please

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

How can you find the mean absolute deviation (mad) for this set of data?

The pair of coordinates that do not represent the point( 5,150’) is a. (5,-210) b. (5,210) c. (-5,330) d. (-5,-30)