1cm is equal to how much kilometers

The graph shows the number of birdhouses Penn and his father can build if they have enough time to build no more than 10 birdhouses. what is the domain of this graph? A. all whole numbers from 0 to 10 B. all real numbers C.

Dan learned the mass of an electron is about 9.1*10⁻³¹ while the mass of a proton is about 1.7*10⁻²⁷. He thinks electrons have a greater mass than protons because 9.1 is greater than 1.

Write the multiples of 4 starting from 40

Claudia bought 2 filing cabinets and 4 cupboards. A filing cabinet costs 3 times as much as a cupboard. She paid 800 altogether. what was the cost of the cupboard

Are 12x^2y^3z and - 45zy^3x2 like terms? explain why or why not.

The sum of two consecutive odd integers is 244244. Find the two integers.

Factor the expression k2 - 9h2

There are twelve shirts in your closet: five blue, four green, and three red. You randomly select one to wear. What is the probability it is blue or green?

You have 6 different video games. How many different ways can you arrange the games side by side on a shelf?

What is the least common multiple of 17 and 9?