Nina and her friends have $40 to
each small soda costs $2
er friends have $40 to spend at the movie theater. each large popcorn costs $5 and
write an equation for the number of snacks she can buy with the money she has.

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?