Will upvote if you explain on how i solve this

f(x) = 5(2)x

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

  cassidy wants to cut the yellow fabric into strips that are 0.3 yards wide. how many strips of yellow fabric can cassidy make? yellow fabric 16 yards for $108.00.