What does 42 represent in this date base 48,40,52,42,40

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

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.