Will 5 1/5 x 2/5 be larger or smaller than 5 1/5

What is the factored form of the following expressions? d^2 – 13d + 36

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.

Sum of the interior angles of a pentagon