Asample of n = 5 scores has a mean of m = 8. one new score is added to the sample and the new mean is calculated to be m = 9. what is the value of new score?

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

What sums are equal to 6/12? choose all answers that are correct a.6/12+6/12+6/12+6/12+6/12+6/12 b.2/12+1/12+1/12+2/12 c.5/12+1/12 d.1/12+1/12+1/12+3/12 plz : )

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.