Consider the function rule f(x)=9x-7. a. Find f(4)
b. Find f(-2)
c. Show or explain how the equation 9x-7=65 can be solved using an "undoing process." Report a solution to the equation.

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Two cities a and b are 1400km apart and lie on the same n-s line. the latitude of city a is 23 degrees. what is the latitude of city b. the radius of the earth is approximately 6400km.