Using the greatest common factor for the terms, how can you write 45 + 75 as a product?

What percent of the circle below is shaded?

The radius of a sphere is 3 inches. which represents the volume of the sphere?

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?