Mary is making pillows for her life skills class. she bought 2 1/2 yards of fabric. her total cost was $15. what was the cost per yard?

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.

What is 0.000008 meters in scientific notation