\frac{2m^2-4m}{9m^2-4} simplify it

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.

Answer asap evaluate 4-0.25g+0.5h4−0.25g+0.5h when g=10g=10 and h=5h=5.

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.