Maribel was working at the fruit stand and had to find how much change to give a customer. The customer bought 11 oranges at $0.65 each and paid with a $10 bill. Use c to represent the amount of change and choose the correct equation.

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?