Asquare patio has an area of 121 square yards. what is the length of this patio?

Ineed to know the answer to this algebra question.

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.