Numbers like 10 100 1000 and so on are called

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%.

Which expression is equivalent to 4 square root 6 divided by 3 root 2

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us