Which ordered pair is not in the solution set of y < 2x - 1 and y> //x+2? (1) (4,7)
(2) (5,8)
(3) (6, 6.5)
(4) (6, 7)

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?