Mrs. jack bought 150 T-shirt for $1920 from a factory calculate the cost of one T-shirt

What is the quadric regression equation that fits these data

What situation is an example of an observational study

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.