5 friends are going to sit together in a roller coaster car that has 5 seats. In how many different arrangements can they sit?

I am giving out brainliest to the right answerer! Suppose you have a bag if 40 marbles and 20 of them are white. If you choose a marble without looking, the probability that you choose a white marble is 20/40. Describe the probability.

How many, and what type of solutions does 2x^2 + 11x + 15 = 0 have? a.) 2 irrational solutions b.) 2 nonreal solutions c.) 1 rational solutions d.) 2 rational solutions

Round 1964.15569 to the nearest hundredth, tenth, one, ten, and hundred.

Which one of the following statements expresses a true proportion? A. 2 : 3 = 3 : 2 B. 42 : 7 = 6 : 2 C. 14 : 6 = 28 : 18 D. 3 : 5 = 12 : 20

Nancy, Marcus, and Ken shared $364 among themselves. Marcus received 4 times as much as Ken. Nancy received twice as much money as Marcus. How much money did Marcus receive?

An oil well off the Gulf Coast is leaking, with the leak spreading oil over the water's surface as a circle. At any time t, in minutes, after the beginning of the leak, the radius of the circular oil slick on the surface is r (t) = 4 feet.

A pizza is cut into six unequal slices (each cut starts at the center). The largest slice measures $90$ degrees: [asy] unitsize (0.

What is the probability of spinning green on the first spinner and blue on the second spinner?

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According to the U. S. Geological Survey, the Mississippi River is 200 mi shorter than the Missouri River. Together, they cover a total of 4880 mi. Find the lengths of each river.