The first one is $72,000
Step-by-step explanation:
You did the first part right where you added all the values together to get $10,875. Next, multiply that by 2, since there are 2 semesters in a year of college. You should get $21,750. Since he will be going to college for 4 years, you can multiply $21,750 by 4 to get the total amount of money he will pay throughout his entire time at college, which is $87,000. Since he has $15,000 already between the scholarship and the money from his grandma, that is already paid for, so you can do $87,000-$15,000 to get $72,000.
For the next one, you were correct with C as the first answer and the second answer is 16 ounces.
Step-by-step explanation:
You will have to estimate a little bit for this one. At 3 weeks, you can see that the kitten ways approximately 13 ounces, and at 8 weeks it weighs about 29 ounces. If you then do 29-13, you should get 16 ounces.
For the last one I would say scatterplot 2 only.
Step-by-step explanation:
Scatterplot 2 generally goes up in a straight line, while scatterplot 1 goes up then down, meaning that scatterplot 2 is the only linear function.
Hope this helps :)