2x-3y4/x5y-2 help m plz daddy

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)

Una caja de galletas contiene 16 paquetes y cada una de estas tiene 12 galletas y se quieren repartir entre 6 niños ¿de cuantas galletas le toca a cada niño?