Help hel help help he; peee;e;;e

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Luke wants to reduce the area of his rectangular garden by 1/4 the expression 14/w can be used to represent this change. what is another way to write this expression?

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)