Answer:
correct answer is explained in the picture attached
Answer:
Step-by-step explanation:
I'm going to take a leap here and say that the -41^2 should be a -41t^2 and that the expression should look like this:

A term is a combination of variables and numbers separated by either a plus or a minus from another combination of variables and numbers. We have 3 terms: -41t^2 is one; -13t is another; 9 is the last. So this is a trinomial.
The degree of a polynomial is equal to the degree of the highest degree'd term. Since the leading term has a power of 2 and that's the highest degree of all the terms, this is a second degree polynomial, or a quadratic, to be more specific.
C
Because .75 times 9 would give you the price of the books and then you would have to add C, the amount left to get to 20.
First you have to get all the values on the other side of y. To do that subtract 2x, then divide the values on the right by 3. You will be left with y=3-2x/3.
To do the mean of the numbers, you have to add them all together and divide them by the number of numbers:
65 + 125 + 90 + 100 = 380
There are 4 numbers, so you have to do
380 ÷ 4 = 95
The mean of those numbers is 95