10. Solve for the mz 1: Show your work

What is the number 321,000,000 in scientific notation? also what is the number? ?

The liabilities of cullumber are $99,000. owner’s capital is $143,000; drawings are $96,000; revenues, $467,000; and expenses, $301,000. what is the amount of cullumber company’s total assists?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).