67.65 ÷ 13.7 = 4.94. a. yes. b. no; 7.41. show work

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared