Vincent's cell phone plan charges a $10.00 monthly access fee and $0.04 for each text message sent. Which expression below represents the total monthly charge Vincent will have to pay if he sends n text messages this month?

a. 10.00 + 0.04 + n

b. 10.00 + 0.04n

c. 10.00n + 0.04

d. (10.00 + 0.04)n

Pranav and molly are selling pies for a school fundraiser. customers can buy blueberry pies and pumpkin pies. pranav sold 6 blueberry pies and 4 pumpkin pies for a total of $106. molly sold 6 blueberry pies and 3 pumpkin pies for a total of $90. find the cost of each of one blueberry pie and one pumpkin pie