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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

QUESTION :

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.