If the universal set contains natural numbers that are at most 25, and A is the set of multiples of 3 that are less than 20, define A.
(Your answer should look like . { #,##} Do not put spaces between
comma and the number.)

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

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?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%