Lilly has a bag of 140 colored marbles. the bag has an equal number of green and blue marbles and an equal number of red and yellow marbles. if lily arranged all of the green marbles in groups of eight and all of the blue marbles in groups of seven how many red marbles are in the bag?

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?