Please help me with this

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function