What are the new vertices of triangle ABC if the triangle is translated three unit to the right and then three units downward?

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

With finding limits of multi variable !