Sandra saves 12% of her salary for retirement. this year her salary was $3,000 more than in the previous year, and she saved $4,200. what was her salary in the previous year? (example 3)

i could probably can you me with a question of mine?

step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.