KA-0153●○○3 points, difficulty 1 of 33 ptLevel 7–8not yet calibratedA jacket costs 80 pounds. In January the price rises by 20 percent. In February the new price falls by 20 percent. What is the price at the end of February?NUM-10Percentages and simple discountsalso CFT-11, CFT-10
KA-0161●○○3 points, difficulty 1 of 33 ptLevel 9–10not yet calibratedWhat is the remainder when 2 to the power 50 is divided by 7?NUM-06Remainders and modular cyclesalso NUM-07, PAT-03
KA-0169●○○3 points, difficulty 1 of 33 ptLevel 11–12not yet calibratedWhat is the remainder when 7 to the power 100 is divided by 5?NUM-06Remainders and modular cyclesalso NUM-07, PAT-03