A tree measured 12 1/2 ft tall. Over the next 5 1/2 years it grew to be 51 ft tall. During 5 1/2 years, what was the average yearly growth rate of the tree?

Aplane is flying at 32,500 feet. it needs to rise to 36,000 feet in two stages.• in stage 1, it rises 5% of its initial altitude of 32,500 feet.• in stage 2, it rises at a rate of 125 feet per minute.how many minutes does it take for the plane to rise during stage 2?