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There is a 1 in 2 chance that you will take the right path at a 2-way fork. However, you went through more than one 2-way forks, so, what you need to do is multiply 1/2 half by itself the number of times you went through a 2-way fork. Since you went through a 2-way fork 2 times, do the following:

(1/2) * (1/2)

You would get the following as your final answer.

There is a 1 in 4 chance that I am still on the correct path.

Good for you. (what do you need help with)

To find the perimeter rectangle you would add the measures of the outside sides of the rectangle.

For instance, if the lenghths of the sides of the rectangle are 4,4,5, and 5, then you would add like the following:

4 + 4 + 5 + 5 =

You would find then that the perimeter of the rectangle would eaqual 18 units.*

*Units stands for whatever label your rectangle is measured with.

First Step -- Distributive Property

4(5a - 3b)

4*5a = 20a

4*-3b = -12b

Second Step -- Combine Like Terms

20a -12b (there are no like terms)

Final Answer

20a -12b

You can plug the following into a calculator to get the answer you seek.

275 / 38 =

P.S. 275 divided by 38 is 7.23684210526

However, below this text is pi.

3.14159265359 (however, this is just the first 12 digits, whereas pi goes on forever but doesn't repeat)

Below is pie.

40.16666666666666664 in fraction form is about 40 and 1/6.

'A system of equations is a collection of two or more equations with a same set of unknowns. In solving a system of equations, we try to find values for each of the unknowns that will satisfy every equation in the system. The equations in thesystem can be linear or non-linear.'                                                                     --http://www.sosmath.com/soe/SE/SE.html