In an arithmitic sequence the tenth term is equal to 28. The sum of term 5 and term 7 is equal to 32. Calculate the sum of the first 50 terms.

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?

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

A. what is the area of the base? use complete sentences to explain your reasoning. b. what is the volume of the prism? use complete sentences to explain your reasoning.