Perform the indicated row operation: 2 −1 −4 7 −1 2 1 −1 3 4 5 5 equation 2 −1 −4 7 −1 2 1 −1

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

Pls if a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is 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.