When looking at this problem, we need to understand that we're looking at the X column up here for the input and the F of X or G of X for the output, depending on what we're looking for. So when we want F of -4, we're going to go to the -4 column for the input and we're going to go over to the F to find the output. So F of -4 is the number 4. So we're going to have sqrt 4 minus. Then we're going to look at the F of -3. So we're going to go to the -3. We're going to look over at F and we're going to get -5 minus G of -1. So we're going to go to the -1 common column for the input, look over to the G -5 for the output plus F of -5, we're going to go to the -5 column, look over to the F. We're going to get 5 divided by G of -1 and put a -1 looking over to the G column. We get -5 * g of -4 looking at the -4 column for the X over to the G6. Now it's just a matter of order of operations. 4 - -5 sqrt 9 - -5 ^2 is 25 plus 5 / -5 is -1 * 6, so sqrt 9 is 3 - 25 negative 1 * 6 is -6 negative 22 - 6 gives us -28.