I think in the first sentence, that should have been 3/4 instead of 34. Total amount of steak bought (lb)
total amount = (3/4 lb/steak)(12 steak) = 9 lb
To find the total amount that Silvia spends for each pound of steak, we divide $90 by 9 and that will give us an answer of $10.
Equals to -17
add the two negatives together
900/18=50
On average, 50 students rode each bus
Hope this helps!
N=1 4+7n=71 that is the answer