The cost per item at a supermarket follows an exponential distribution. There are many inexpensive items and a few relatively expensive ones. The mean cost per item is $3.50. What is the percentage of items that cost: A. Less than $1? ROUND YOUR ANSWER TO 4 DECIMAL PLACES!!

B. More than $4? ROUND YOUR ANSWER TO 4 DECIMAL PLACES!!

C. Between $2 and $3? ROUND YOUR ANSWER TO 4 DECIMAL PLACES!!!

D. Find the 40th percentile. Sixty percent of the supermarket items cost more than what amount? ROUND YOUR ANSWER TO 2 DECIMAL PLACES!!

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.

Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?

Are you guys willing to me with these last 8 questions on my homework for math reply to this question that i posted