What is the slope of a vertical line?

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

Which system of linear inequalities is represented by the graph?

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?