Answer:
<u>5 127/200 meters</u>
Step-by-step explanation:
4 1/2 = 4 5/10 | 4/5 = 8/10
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4 5/10 = 4.5 | 8/10 = 0.8
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4.8 divided by 0.8 = 5.625
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5.635 = 5 635/1000
635/1000 divided by 5 = 127/200
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5 + 127/200 = <u>5 127/200</u>
Answer: $49.5
Step-by-step explanation: If each song costs 0.99 cents then you multiply the number of songs you are buying by the cost. So that would be 0.99×50=49.5
Answer:
-i(6/7)√2
Step-by-step explanation:

How the quadratic formula works:
For any quadratic equation ax² + bx + c = 0, the solution is

.
In the case of our equation 7x² - x = 7, first we need to subtract 7 from each side so that we have 0 on the right.
7x² - x - 7 = 0
Identify the values of a, b, and c.
a = 7, b = -1, and c = -7.
Plug these into our quadratic formula and solve.

There are two values for x: (1+√197)/14 and (1-√197)/14.
The approximate values for these are 1.073976 and -0.931119.