Is the answer c 162 ? ? someone check me this is triangular prism i did 1/2 × 6×3×18 but someone else got 243 and i don't know i don't want to chance 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.

Find the equation of a line whose slope is 2/5 and y- intercept is 2.write your answer in the form 1) ax+by+c=02) x/a+y/b=1

Can you me find the slope! (30 points)