If D and R be the degree and radian measures of an angle respectively, prove that:

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation

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?