Help please and thxxx

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%.

The triangles are similar. what is the value of x? show your work.

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}