Aswimming pool fence was placed around a rectangular enclosure of length 12 m and width 8 m. a post was placed every 2 m. how many posts were needed?

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Travis and paula went to lunch.travis ordered a sandwich for $7.50 and paula ordered a burger for $5.25.after lunch,they left a 15% tip for the waiter.how many money did they spend altogether?

Acollege student takes out a $7500 loan from a bank. what will the balance of the loan be after one year(assuming the student has not made any payments yet) a. if bank charges 3.8% interest each year ?