Which has the largest slope? And explain?

Options:
a) [13,14]
b) [13, 17]
c) [16, 17]
d) [16, 19]

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

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?

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?