Awell is 20 feet deep. a snail at the bottom climbs up 4 feet each day and slips back 2 feet each night. how many days will it take the snail to reach the top of the well.

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?