Can somebody answer this please.

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

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?