Answer:
on a shoestring. With very limited financial means, as in The newlyweds were living on a shoestring. The precise allusion in this term is unclear. One fanciful theory is that debtors in British prisons would lower a shoe by its laces from a window so as to collect funds from visitors or passers-by.
Explanation:
I say 1 1/2 yards because you need to subtract 4 3/8 by 2 7/8. If you do subtract you would get 2 and -4/8 so you have you take away one from two which would be 1 4/8. Since 4+4 = 8 it would equal half so that the complete answer would be 1 1/2.
Sentence 4 because it summarizes the paragraph but does not give an opinion like answer but used factual evidence to support it.