Answer:
It will take 22 seconds for the thermometer to hit the ground.
Step-by-step explanation:
A thermometer falls from a weather balloon at a height of 7,744 ft.
This means that the initial height is of 7744ft.
h(t) = -16t2 + initial height
So
How many seconds will it take for the thermometer to hit the ground?
This is t for which 
. So
It will take 22 seconds for the thermometer to hit the ground.
Answer:
What is the equation of the line? I need that to be able to help you
So the first question you just need to convert it to its simplest form. You would do 105 \ 20 and that turns into 4 5/20.
The second question is turning it into a improper fraction so instead of dividing it you would multiply the whole number with the denominator, then add the numerator. So 4 x 9 = 36.
36 + 8 = 44
Add back the denominator to 44 and you get
44/9
12.60 because 3x1.75=5.25 and 4.2x1.75=7.35 and if you add 5.25 and 7.35 it equals 12.60
90, 75% is also .75 and .75*120 is 90
