The variable z is directly proportional to x, and inversely proportional to y. when x is 3 and y is 14, z has the value 3.8571428571429. what is the value of z when x = 12, and y = 23 round to at least the thousandths place if needed.

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?