The surface area of a pyramid is 29.7 in? What is the surface area of a larger, similarly shaped pyramid that has a scale factor of 4.8? Round the answer to the nearest tenth if necessary.
a. 3,284.6 in?
C. 142.6 in?
b. 4,234 in
d. 684.3 in?

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?