The street fair charges an admission price of $5 per person. In the first hour, one gate admitted 10 people. In the second hour, the gate admitted 20 people. How much money did the this particular gate collect in the first two hours of the street fair? A. $150
B. $110
C. $70
D. $50

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?