This is the last one I don’t really ask for questions I’m school because I don’t understand if anyone could help I don’t know how to write statements

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?

How do i find the missing angle measure in a polygon

Sum of the interior angles of a pentagon