Let, the age of Kim = x
Then, Jordan's age = x + 7
It is given that, 4(x + 7) = 200
a) Equation would be: 4x + 28 = 200
b) Now, 4x = 200 - 28
x = 172/4
x = 43
So, Kim is 43 Years old.
c) Age of Jordan = x + 7
= 43 + 7 = 50
In short, Age of Jordan is 50 Years
Hope this helps!
First you need to solve for angle F then you can use 1/2acSinB. If you haven't done this you can also use the Pythagoras theorem and solve for the unknown side once you do that you can just use 1/2 b*h