Answers for factoring out the gcf and please explain how you got the answer of -24x + 16y

John bought 5 lemons and used 2 of them for a salad how much did he use for. a salad . he used % of the lemons.

What is the lcm of 16 and 40 ? 24 and 40 ?

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?