5 brownies and 15 cookies.
Working
4 plates —> 2B + 6C
1 plate —> 2/4B + 6/4C
10 plates —> 5B + 15C
(y=4x/5-9/5) 5
5y=4x-9
(-4x+5y=-9) -1
4x+5y=9
Hope this helped you!! :)
Ron walks faster because his unit rate is 20 and steve's unit rate is 24.
Yeah, I agree - your counselor shouldn't suggest a class you literally shouldn't be able to take