Is every equilateral triangle cute

Evaluate cos2θ for cosθ = square root of 3/2

How much orange juice do you need to make 2 servings of lemony orange slush?

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.