Consider the following expression. 4y+2+ 7x Select all of the true statements below.
1. 7x and 2 are like terms.
2. 2 is a constant.
3. 7 is a coefficient.
4. 4+2 - 7x is written as a product of three factors.
5. 40+2+7x is written as a sum of three terms.

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?