Wha is the greatest common factor of 1 and 27

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.

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.

Simplify the following expression 48^1/2