The sun radiates energy into space at the rate of 3.9x10^-26 joules per sec. how many joules are emitted in 3 weeks

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.