Kathy and her nana are working on a craft project Kathy would like to give these as birthday presents to all her friends Nana has 6 2/3 yards of material If each project requires 3/4 of a yard of material then to how many friends can she give gifts

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

What is sin 7x/4 ? i need on this urgent trig

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.