A student places 20 grams of water in a container and then places the container in a freezer. After 30 minutes, the water freezes into ice. What is the mass of the ice? Please help it is due in 10 minutes!!

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?