At a pie eating contest johnny ate 8 pies in 5 mins how long did johnny spend on each pie

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

Arectangle with an area of 47 m² is dilated by a factor of 7. what is the area of the dilated rectangle? enter your answer in the box. do not leave your answer as a fraction.

Is a positive integer raised to a negative power always positive