Assume the relationship is a direct variation, what is the equation ?

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Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

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. what distance from city a is the point where the truck and the car will meet?