Find the reciprocal of each number. 1. 1/2 2. 3/5 3. 4/7 4. 8/11

5. 7/12 6. 9/10 7. 5/8 8. 3/10

If value of cos330° is √3/2 then find tan165°.

The ideal weight of a nickel is 0.176 ounce. to check that there are 40 nickels in a roll, a bank weighs the roll and allows for an error of 0.015 ounce in total weight

What is the approximate mark up percentage rate before m equals $1740 marked up from p equals $19,422