Cheng likes a modern lawn sculpture made of four identical solid right pyramids with square bases. he decides to create an exact copy of the sculpture, so he needs to know what volume of sculpting material to purchase. he measures each edge of each base to be 2 feet. the height of the whole sculpture is 6 feet. what is the volume of material he must purchase? 2 ft3 4 ft3 6 ft3 8 ft3

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?