The ratio of three numbers is 4: 3: 1. the sum of the numbers is 64. what is the greatest number.

Ican figure out 20 shares multiply by $117.98 =2359.6920 shares multiply by $124.32=2486.40then take 40 shares multiply by $128.48=5139.20after that i'm lost any be greatly appreciated.

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

What is the absolute value of the complex number -4-sqrt2i