I really need help, this is on khan academy and i know that i can watch the videos but i feel like they wont help, can someone help me ??

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

A. s.a.! this is a similarity in right triangles. next (solve for x)a.) 12b.) 5c.) 12.5d.) [tex] 6\sqrt{3} [/tex]