A coin is tossed 4 times. what is the probability of getting 4 tails?

Which is the graph of the function y=2(4)^x

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

At 6 1/2 cents per pound of string beans how much does 7 pounds cost