What is the slope of any line perpendicular to the graph shown(Type your answer as a fraction in simplest form)

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)