30 points plz help The diagram shows a 6 ft student standing near a tree. The shadow of the student and the shadow of the tree end at point A. What is the height of the tree?

Question 1 options:

90 ft

18 ft

90 ft/2

18 ft/2

For what values of b will f(x)= logbx be a decreasing function? (16 )

Which of the following statement about pascal's triangle are true?

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a. m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?