Prove that if every two of them have a vertex in common, then "they all have a vertex in common"

How do you solve this? -5√112

Give an example of a monomial of degree zero.

On the blueprint of a house, 33 millimeters represents 8 meters. The actual length of the living room is 6 meters. What is its length on the blueprint?

A glass was filled 3/4 of the way with liquid. 2/3 of the liquid was oil. What part of the full glass was filled with oil?

Bonnie is making a poster with a length of 5 feet and a width of 2 feet for a school competition. She decides to add x feet to the width of the poster as shown in the following diagram.

Susan tossed a die 1,194 times. Which of the following would be a good estimate of the number of times she got the number 3 on the die?

What is 2√-108 simplified expression

An adult elephand drinks about 325 liters of water each day. is the number of days the water supply lasts proportional to number of liters of water the elephant drinks?

Which irrational number can be added to pi to get a sum that is rational? 1/pi -1/pi -pi pi

Andy runs 436.8 meters in 62.08 seconds. I'd Andy runs at a constant speed, how far does he run in one second? Give you answer to the nearest tenth of a second.