total score: of 20 points
pauline, patricia and polly are pie bakers at their bakery, perfect pies. they bake four different pie flavors: cherry, blueberry, apple and pecan.
this table shows the number of the different pie flavors each woman made.
baker cherry blueberry apple pecan
pauline 3 4 1 1
patricia 6 6 4 6
polly 2 2 5 4

this table shows the cost of ingredients for one of each of the pies.
type of pie cost of ingredients
cherry $3.00
blueberry $5.00
apple $2.00
pecan $6.00

this table shows the price at which these pies are sold to 2 different stores.
type of pie samuel’s sweets sugary sarah
cherry $8.00 $8.00
blueberry $10.00 $9.00
apple $7.00 $8.00
pecan $12.00 $13.00
(score for question 1: of 7 points)
1. using matrix multiplication, create the matrix that represents the cost of ingredients used by each person to make their pies. create matrix p to represents the person, and matrix i to represent cost of ingredients. then multiply to determine matrix .

(score for question 2: of 1 point)
2. using , what is the cost of ingredients for the pies polly made?

(score for question 3: of 3 points)
3. using , determine whether the cost of ingredients for the pies patricia baked is more or less than half the cost of ingredients for all pies baked by the three bakers.

(score for question 4: of 7 points)
4. using matrix multiplication, create the matrix that represents the income of each baker from each of the 2 stores at which perfect pies are sold.

(score for question 5: of 1 point)
5. using , which baker yielded the greatest income? what is this income?

(score for question 6: of 1 point)
6. using , what income did polly realize from sugary sarah’s?