If the exchange for 1 u. s dollar is 1.5 canadian dollars, how many u. s dollars will margie get for 81 canadian dollars?

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.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

38 points and brainliest plz answer question in word document