Juan bought 7.8 pounds of seedless red grapes for $2.85 per pound. How much did Juan spend on seedless red grapes?

In the 30-60-90 triangle below side s has a length of and side r has a length

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

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.