Free points and I'll mark u brainliest

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

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?

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.