Answer:
a
Step-by-step explanation:
simplify 5(x+3) = 5x+15
To answer this question and you will use exponents.
When you fold your paper three times, it is represented as two cubed or 2^3.
When you for your other sheet of paper two times, it is represented as two squared or 2^2.
Put Both of these together and you have 8+4 which equals 12.
It will take 12 layers of paper.
Answer:
Oooooo
Step-by-step explanation:
Answer:
7200 people
Step-by-step explanation:
Let's say x amount of people tried out.
After round 1: 1/2 x are left.
After round 2: 1/3 (1/2 x) are left
After round 3: 1/4 (1/3(1/2 x))) are left
Each time we multiply by the fraction that are left. By the end we will have
1/6(1/5(1/4(1/3(1/2 x))))
So to find it multiply the denominator out:

To find x, we set it equal to 10.

Answer:
The Ordovician was named by the British geologist Charles Lapworth in 1879. He took the name from an ancient Celtic tribe, the Ordovices, renowned for its resistance to Roman domination. For decades, the epochs and series of the Ordovician each had a type location in Britain, where their characteristic faunas could be found, but in recent years, the stratigraphy of the Ordovician has been completely reworked. Graptolites, extinct planktonic organisms, have been and still are used to correlate Ordovician strata.
Step-by-step explanation:
Hope I <em><u>Helped!</u></em> :D