Izzy had an 82 and an 88 on his first two tests and believed that he did well enough on his final exam to keep his b average. however, when he got his grade he received a d. he checked with his instructor and learned that the instructor had made a mistake by transposing the digits when he recorded the final exam grade. if izzy's incorrect average (mean) for the class was 69, what was his correct final exam score?

73

Step-by-step explanation:

to find the mean you need to add up all grades and divide if by the number of terms you added

(82 + 88 + x) ÷ 3 = 69 (since we don't know the third grade let's call it x)

170 + x = 69 × 3

x = 37

if the digits transposed the the actual grade would be 73

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.