To solve this problem you must apply the proccedure shown below:
1. You have that
and
, therefore, you must divide must fucntion, as following:

2. You must simplify it,by factoring out
, as following:

3. Finally, you obtain that the answer is:

The third one because x2-x1 is divided by y2-y1
Answer:
$9.61 per shirt
Step-by-step explanation:
You take the total cost of $48.05 and divide it by the number of t-shirts which is 5.
48.05/5 = 9.61
Answer:
105 boys
Step-by-step explanation:
At a local preschool there is a ratio of 3 boys to 4 girls.
i.e boys:girls = 3:4
There are 245 preschoolers enrolled.
Number of boys =
× 245 = 105 boys