Find the values of the variables and the length of each segment.

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

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.