Suppose that y varies directly with x and inversely with z; y = 27 when x = 21, and z = 7. Write the equation that models the relationship. Then
find y when x = 25 and z = = 5.

Write each expression in exponential form and find its value. 3 x 3 x 3

Part a: select all of the ordered pairs that are located on the graph of the equation. part b: does the graph of the equation represent a function? select all correct answers for part a and one answer for part b.

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap