Use the line of best fit to determine the x-value when the y- value is 190

What is the measure of angle afe? 79 81 91 99

Which of the following statement about pascal's triangle are true?

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.