Some one please I am failing math really bad

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?

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)