Solve for x: 1 and 2/3 x -2/3 (-1 + x) = 1/4
x = ? ?

Factor the polynomial expression x6 – x3 – 20

Oliver had $50 on the day before his birthday. after he recived some money for his birthday , he had $75. write and solve eqaution to find how much money oliver received for his birthday. x+50=75

Apasta salad was chilled in the refrigerator at 35° f overnight for 9 hours. the temperature of the pasta dish dropped from 86° f to 38° f. what was the average rate of cooling per hour?