Plz i will give brainlest

what is the value of

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?

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.