So plug in the 5 for x. it would look like 7(5+4). you do PEMDAS and then looks like 7(9) and 7 multiplied by 9 equals 63.
Answer:
$00.90
Step-by-step explanation:
If you dive the total cost of the case, $37.20, by the total number of pencils, 40, that's the answer you get.
You can factor it by using a method of your choice. I'll just use guess and check, because it's the easiest in this situation (for me). I need two numbers that multiply to 6, and add up to 5. Those two number are 2 and 3. 2 * 3 = 6, and 2 + 3 = 5. So, I can write the above equation as follows in factored form:

Then it's pretty easy to recognize the zeros because I just have to solve for each parentheses by doing this:

and


So, your zeros are at
-2 and -3.
Your answer is A. If any step doesn't make sense, hmu!
Because it might help better understanding another method than just one. You might also not like ratios and like fractions better then that.