Is - 1i equal to the square root of 1? or something else ...

Travis and his sister are arguing about toilet paper. Travis thinks that 12 rolls for $9.84 is a better buy than 20 rolls for $13.80. Which is a better buy? Show your reasoning. Al life, we want to buy the item that costs less per unit

It takes 36 nails to weigh a pound. How many would it take to weigh 7 2/3 pounds

A number, y, is equal to twice the sum of a smaller number and 3. The larger number is also equal to 5 more than 3 times the smaller number.

Rod smokes 1 1/2 packs of cigarettes per day. Rod buys cigarettes by the carton. There are ten packs of cigarettes in each carton. If Rod pays $35.80 per carton, how much does it cost him for each day of smoking?

List all the number sets that apply to - 3

Which statement is correct? The range of the graph is all real numbers less than or equal to 0. The domain of the graph is all real numbers less than or equal to 0. The domain and range of the graph are the same.

In which type of triangle do the three altitudes intersect outside of the triangle?

I need to simplify this expression : 3.2 + (b + 5.7)

What is the standard form of 2x-8y=16

What would 6x-4=10 be?