Which expression is equivelent to 2(4x - 3) + 3x -1

a. 2(3x - 3) + 8x - 1

b. 5x - 1

c. 11x - 7

d. 8x + 3x - 4

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?