Find the side length of an equilateral with a height of 30 yards?

Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

Ms. green tells you that a right triangle has a hypotenuse if 13 and a leg of 5. she ask you to find the other leg of the triangle. what is you're answer?