What is f of x in an equation

Scott Samuels had pharmaceutical sales of $42,500 last month. If his commission rate is 9%, find the amount of his commission.

Solve the system x-y=100; 10x-10y=1000

1. The table shows the average low temperature at Anchorage, Alaska, from December 17 to December 24. At the bottom of the table is the average temperature for the 8-day period.

Find the 96th term of the arithmetic sequence - 30, - 32, - 34, ...

The diameter of a bike wheel is 2 ft. How far will the bike go in one rotation of the wheel?

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.