Sean is conducting an experiment with an isotope of a particular element that has a half-life of 4 hours. He begins with a sample of the isotope with a mass of 77 grams. He then measures the mass of the object every hour. What is the approximate mass of the sample after 24 hours? A.
4,928 grams
B.
0.0156 of a gram
C.
0.6016 of a gram
D.
1.2031 grams

Which system of linear inequalities is represented by the graph?

Barbara has a good credit history and is able to purchase a car with a low-interest car loan. she co-signs a car loan for her friend jen, who has poor credit history. then, jen defaults on the loan. who will be held legally responsible by the finance company and why? select the best answer from the choices provided. a. barbara will be held legally responsible because she has a good credit history. b. jen will be held legally responsible because she drives the car. c. barbara will be held legally responsible because she is the co-signer. d. jen will be held legally responsible because she has a poor credit history. the answer is a

The tile along the edge of a triangular community pool needs to be replaced? ?