Can someone explain how to solve this ?

What is the range for 31,39,29,34,37,24,36,33,34,28

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

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?