If Sam grows 7/8 cm a day, how much taller will he be in 30 days?

(if f(x)=4x^2 and g(x)=x+1, find (f o g)(x)

What is the product of the radical expression. (7-2square root) (8+2 square root)

Yesterday, george drank 1 small bottle and 2 large bottles, for a total of 1,372 grams. the day before , he drank 1 small bottle and 1 large bottle, for the total of 858 grams. how many grams does each bottle hold?