When is subtraction always the first operation done in an expression?

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6

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?

Find the value of x in the diagram below. select the best answer from the choices provided