Show all work to solve these system of equations algebraically.
y = x - 1
y = x2 + 2x - 3

43lbs of tomatos cost $387. how much would 41lbs cost

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?