Mt. everest is 29,029 feet above sea level. the dead sea is 1,411 feet below sea level. what is the difference between the elevations?

a) −27,618 feet
b) −30,440 feet
c) 27,618 feet
d) 30,440 feet

Ineed to know the answer to this algebra question.

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

42. if 20 men can eat 200 kg of wheat in 40 days, then 10 men can eat 300 kg of wheat in how many days? a) 120 days b) 60 days c) 80 days d) none of these