Answer: Part A:
If Isabella's mother has a garden with an area of 10 2/3 square feet, and she plants peas in 1/4 of the garden, we can calculate the area used for planting peas by multiplying the garden area by 1/4:
Area used for planting peas = (10 2/3 square feet) x (1/4) = (32/3) x (1/4) = 8/3 square feet
Therefore, the area used for planting peas is 8/3 square feet.
Part B:
If Isabella's mother sells the peas and gets 3 dollars for each square foot, we can calculate how much money she made by multiplying the area used for planting peas by 3:
Money made = (8/3 square feet) x (3 dollars/square foot) = 8 dollars
Therefore, Isabella's mother made 8 dollars by selling the peas she planted in her garden.