Use signed numbers to solve.

a helicopter rose 2400 feet, descended 1650 feet, and then descended another 725 feet. what was the net gain or loss in altitude?

a.
gained 25 ft

b.
lost 750 ft

c.
lost 25 ft

d.
gained 750 ft

The graph of a line gets what as the value of the slope gets bigger

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.