do questions 3 and 7 (the ones i circled are the ones you do) write the sentence on the line and capitalized the proper nouns

What is the solution to the equation in the & show work i’m very

Which number completes the inequality? 2/3 < _ < 7/9

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?