First you need to understand the structure of the commission.
The first part is 6% commission on sales up to $500.
The second part is 8% commission on sales over $500.
Note that the second part doesn't mean that a sale of $800 gets 8% of $800.
It means that once we have reached $500, any *further* sales get 8%.
Since $800 is $300 more than $500, the commission is
6% of $500 +
8% of $300
The first thing she did was work out the excess above $500.
Then she worked out the two percentages in two separate parts.
The second part seems to have incurred a cut and past accident, not sure if that is yours or it was already done.
Answer:
2, because there is 16 fluid ounces in a pint and 16+16= 32
You know that you have the Opposite side and the Adjacent side. therefore you would use Tangent (T= O/A)
because you are finding the angle you would go Tan^-1(12÷20) =31°
it is 12÷20 because O/A and the 12 is the opposite side therefore It would be O and 20 is the adjacent side therefore equaling 20 so O/A = 12/20
Your answer is 31°
A 25% it is right I believe