Susan set up a lemonade stand to raise money for a children's hospital. She's selling cups of lemonade for $2.50 each and brownies for $1.50 each. She sells 280 items and raises $540.

Create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

Define multiplicative inverse. give an example of a number and its multiplicative inverse.