Answer:
V=-1
Step-by-step explanation:
1st of all, this makes my brain hurt
2nd of all, which one was the first marble?
Using the distributive property , 4*9+4*7 or 36+28
The answer would be the square root of 25 times 9 im pretty sure its been while and it would be 25*9=225 square root of 225 is 15
Find the average of all the tests on the first and second test. You find the average by adding up all the test scores and dividing it by the number of test scores you added. Then you can see if she did better than the overal average on each of the tests
