You are studying for your final exam of the semester. up to this point, you recieved 3 exam scores of 83%,85%, and 84%. to recieve a grade of b in the class you must average exam score between 80% and 89% for all 4 exams including the final.

find the widest range of scores that you can get on the final exam in order to recieve a grade of b for the class. use interval notation

The widest range lies between [68,100]

Step-by-step explanation:

Given is - to receive a grade of B in the class you must average exam score between 80% and 89% for all 4 exams including the final.

So, the range of the addition of all 4 scores is -

Now given scores addition is =

Now, the widest range of scores that you can get on the final exam in order to receive a grade of B can be found as :

So, the range lies between [68,100]

stew reads at the fastest rate of 265 words per minute.

step-by-step explanation:

it's a given that felicia reads at 260 word per minute and on connie's graph we can see that she reads 200 words per minute. since stew's table tells us that he read 795 in 3 minutes, we can divide 795 by 3 to find out how many words he reads per minute.

795/3 = 265

stew reads 265 words per minute - he reads at the fastest rate since felecia reads at 260 words per minute and connie reads at 200 words per minute.

stew (265) > felecia (260) > connie (200)