Cho tam giác ABC cân tại B có góc ABC =120° ,AB = 12cm và nội tiếp đường tròn tâm (O). Bán kính đường tròn là

Can someone me with this problem i don't understand i need

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.

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?