Farah found 7 rolls of teal ribbon and blue ribbon. Each roll of teal ribbon was 1 meter long and each roll of blue ribbon was 7 meters long. If Farah found 37 meters of ribbon in total, how many rolls of each color did she find?

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?