Answer: B= .15 F= 1.05
Step-by-step explanation: So I wasn’t sure on what exact answer you were looking for but I did all of it if you needed it. But basically for this problem you can either do substitution or elimination, I did elimination cause it’s faster for this problem but you can do whichever feels better for you. For elimination the goal is eliminate one variable so you can solve for the other one. Here it was easier to eliminate F first so to do so you find the least common multiple (LCM) and multiply both equations to make 5 and 2 equal, here it was 10 so I multiplied 5 with 2 and 2 with -5 as to allow for subtraction. Then you solve for B. If you need F all you do is take B for the first part and plug it in to whichever question and solve for F. To check your work just take your variable solutions and plug both of them in to see if the equation is equal, if not go back and make sure you didn’t miss something.
Hope this helps :)