How are polar and rectangular planes related?

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

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?