-21x + 24 = -56x – 46
what number represet the varible

Liam's parents are driving three times as fast as liam is biking, but they left later than he did. if his parents caught up with him two hours after he left, how much later than liam did they leave?

15 points! write the slope-intercept form of the equation of the line through the given point with the given slope. use y-y = m(x-x) to solve. through (2,5) slope= undefined

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?