Answer:
The answer is A.
Step-by-step explanation:
Given that Winnona took 5 tests and retake Test 5. So the mean score for this question is Total number of scores divide by Total number of tests is equals to 87 :
Let Test 5's score be x,
Let mean score be 87,

Next you have to solve the value of x :

The answer to your question would be w=9
Last week she walked at 18/6 = 3 mph
this wee her pace is 2.5 mph
First statement must be true.
I'm not sure what the answer can be for this