How can you solve problems by ordering rationals numbers from least to greatest?

Which graph represents the solution of the inequality?

Me asap! what is the slope of this line? enter your answer in the box.

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?