Solve the proportion: 10/9=5/k

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?

What line represents the relationship between r and s