MATH
posted by Brittany on .
What is the percentage strength of tretinoin gel when you combine 15 g of 0.025% and 30 g of 0.01%?

see other post.
posted by Brittany on .
What is the percentage strength of tretinoin gel when you combine 15 g of 0.025% and 30 g of 0.01%?
see other post.