The owner of a sportin goods store buys pairs of rollerblades for $60 and marks them up 25%.several months later, he decided to clear his inventory and sells each pair of rollerblades at a discount of 20%.what is the total price of a pair of these roller blades with the discount and a 6% sales tax?

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?