Answer:
60 milligrams
Step-by-step explanation:
just cross multiply! percentages are just fractions of 100. so you can say that
multiple 75 by x and 45 by 100 and you get
4500=75x
divide both sides by 75 and you get 60
c maybe 20
d maybe 33
and i dont know the last one
hola si esto está mal lo siento pero hice mi mejor esfuerzo y feliz gracias dando adiós que tengas un día bendito!
60 degrees bc