Multiplying and Dividing Rational Numbers

Which expression is equivalent to $$\frac{12\ +\ 6}{2}$$ ?

Which expression is equivalent to 6 $$\div$$ $$\frac{2}{5}$$ ?

Which statement about 96 multiplied by $$\frac{11}{8}$$ is true?

Emeline earns $6.50 for each hour of work as a babysitter. How much will she earn for working 5.5 hours as a babysitter?

(a)  

A group of 4 friends paid a total of $50.24 for tickets to a museum. Each friend paid the same amount for a ticket. How much did each friend pay for a ticket to the museum?

(a)  

Jaida worked $$21\frac{1}{2}$$ hours last week. She earns $11.60 per hour. How much money did she make last week?

(a)