Find the equation of a line that passes through the points (1,-3) and (3,-7). Leave your answer in the form
y=mx + c

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin

To decrease an amount by 16% what single multiplier would you use