Mrs. Richards 7th grade English class is making get well cards to donate to the local children's hospital. They make 84 cards in 3 hours. Which equation represents the relationship between the number of cards made (y) and number if hours (x), assuming they work at a constant rate?

the answer is d

for problems like this theres an app, its photomath that explains the problem and gives the answer hope i

step-by-step explanation:

rectangles are made up of 4 right angles, which means that a side and a base meet perpendicular to one another.   their slopes then have to reflect perpendicular slopes.   perpendicular slopes are opposite reciprocals of one another.   for example, if the slope of one line is +2/3, then the perpendicular slope to that would be -3/2.   so we look for that combination in our choices.

all of them satisfy that condition (so what's the question, i guess? )