If the slope of FC is 5/2, what must the CD in order for CDEF to be a square

Eric drew a scale drawing of a country park. the scale he used was 1 inch = 2.5 yards. the picnic area is 80 yards wide in real life. how wide is the picnic area in the drawing ?

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

The weekly revenue for a company is r = 3p^2 + 60p + 1060, where p is the price of the company's product. what price will result in a revenue of $1200.