12.7388535, so about 13 would be the radius
In mathematics, a ratio is a relationship between two numbers<span> indicating how many times the first number contains the second. For example, if a bowl of fruit contains eight oranges and six lemons, then the ratio of oranges to lemons is eight to six (that is, </span>8:6<span>, which is equivalent to the ratio </span>4:3<span>).</span>
Answer:
the answer is
hours
Step-by-step explanation:
so first we have to turn the fractions into mixed fractions, in order to do that we multiply the whole number by the denominator and add the numerator, our answer becomes the new numerator over the same denominator.

3 x 4 + 3
12 + 3
15

we do the same thing again.

1 x 3 + 1
3 + 1
4

then after we get our mixed fractions we subtract them from each other. Since the denominators are not the same we multiply to get the same denominators.



we subtract the numerators and keep the denominators.

then we simplify.

Answer:
comparing fossils with other engerys:
Most alternatives energy sources doesn't have as much pollution produce like fossil fuel does,
Fossil comes from underground or persevered by nature, when others can be made by renewable resources, such as Wind(windmills) , sun (solar), and water (those rolly things)