How I can write 680,705 in expanded form

Elizabeth quiere organizar la fiesta de su cumpleaños y pretende invitar a 20 de sus amigos. Para los preparativos de la fiesta compra 21 cupcakes, gaseosas de 3 litros y 10 libras de filete de pollo. A su vez compra pliegos de cartulina de 56.

Is the mean of a set of negative numbers always, sometimes, or never negative? Give an example to support your reasoning. anyone?

It is Saturday morning, and you want to cook for next week. You share a kitchen with your roommate, but only one of you can cook there at the same time. Your roommate woke up before you did, and she started cooking at 11:00 am.

What is 18 divided by two

Use the Quadratic Formula to find the exact solutions of x2 + 7x - 4 = 0. x equals negative b plus or minus the square root of b squared minus 4 times a times c, all over 2 times a

Hailey earned $90 for working 12 hours. How much would she earn for working 20 hours?

Choose the correct simplification and demonstration of the closure property given: (2x3 + x2 - 4x) - (9x3 - 3x2).

3sailboat to 6 fan boats

What is the graph of y = x - 3 (shown below) translated up 2 units?

Ben bowled 143 and 216 in his first two games. What must he bowl in his third game to have an average of at least 170?