Marcus and Emma went to the store together. Marcus had $1.50 and Emma had $0.75. Together they spent $1.00. What expression could be used to find the combined amount Marcus and Emma have left?

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Identify the number 127 as a rational or irrational. explain

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?