Simplify p - 9 + 1 - 6p

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

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?

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test