To do that we have to add 2+7=9
Next step is to divide 72 by 9
72:9=8 - its how many pounds its in"1"
Finally we can multiply
2*8=16
7*8=56 - its the answer
-5 is for f(x)=x+5
4 is for g(x)=x-4
Hope this helps!!
Answer:
x=7.2cm.........................
no it is not i don’t think that adds up correctly if u do the problem