Determine the slope of the graph of x^4=ln(xy) at the point (1,e)

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?

Aphrase is shown read the phrase and give me the answer