If angle ABC=2x and angle CBD=4x and they are a linear pair, solve for x

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

In djkl, side jk measures 10.6 inches, side kl measures 7 inches, and side jl measures 5 inches. based on the information that is provided, which could be a correct set of angle measures for these sides? angle j = 23.2°, angle k = 33.5°, angle l = 23.2° angle j = 23.2°, angle k = 33.5°, angle l = 123.2° angle j = 123.2°, angle k = 23.2°, angle l = 33.5° angle j = 33.5°, angle k = 23.2°, angle l = 123.2°

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?