On a science test, 2 points are deducted from a total of 100 points for each question answered incorrectly. trevor scored an 84 on the test. the equation 100 – 2x = 84, where x represents the number of questions answered incorrectly, represents the situation. how many questions did trevor answer incorrectly?

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?