Answer:
a. 
b. 
Step-by-step explanation:
You need to remember that:
1. The word "more" indicates Addition.
2. The "Difference" is the result of a Subtraction.
a. Then, knowing this information, you know that:
- "The difference of 
and 
" must be expressed as:
- Then, "Three more than the difference of and " is:
- "The difference of 
and 
" can be expressed in this form:
Therefore, "Three more than the difference of and is equal to the difference of and " is:
b. Solve for "s" in order to find its value:
It will be. -3(n+8) because you have to go from greatest to least and then 2 negatives will equal a positive
First we need to know how much each pen costs. So we take 11.77 and divide it by 11. That gives us 1.07 per pen. So answer choice A has 4 pens for 4.44, so we need to multiply 1.07 x 4. That gives you 4.28, so we know that isn't the correct answer. For option B, we need to multiply 1.07 x 5. That is 5.35, so that also can't be the answer. For C, we need to do 1.07 x 6, and that gives us 6.42. So we know the correct answer is option C.
