Adrian said that 21.8 × 1.9 equals 41.42. is adrian's answer reasonable?

You invested $5000 between two accounts paying 4% and 9% annual interest, respectively. if the total interest earned for theyear was $350, how much was invested at each rate? $was invested at 4% andwas invested at 9%.

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Which two fractions are equivalent to 24/84? 6/42 and 2/7 6/21 and 2/6 12/42 and 3/7 12/42 and 2/7