PLEASE SHOW WORK AND/OR EXPLANATIONS! Thank you!

1. A class has a grading policy where the categories have the following worth:

Category Worth Scores in each category

Quizzes 25% 8/10, 9/12, 10/10, 12/15, 11/15

Unit Exams 55% 79/100, 83/100, 84/100

Final Exam 20% ?

a. Calculate the average for the quiz category.

b. Calculate the average for the exam category.

c. Calculate the student's grade as it stands before the final exam.

d. What final exam grade will this student need to get an 80% B in this class?

e. This student scored an 84% on the final. Find their overall grade as a percent?

2. A 16 ounce box of Lizard treats costs $15.99. A 30 ounce box costs $29.99.

a. What is the cost in dollars per ounce in each box? Which size should you buy?

b. Suppose you have a coupon worth $5 toward the price of any box of Lizard treats. If you use the coupon, which size should you buy?Is it always better to buy the large economy size?

c. Answer the previous question if your coupon gives you a 10% discount rather than $5 off.