Perform the indicated operation. Be sure the answer is reduced. k+5/k^2+3k-10 MULTIPLIED BY 4-k^2/7k+14

ANSWER CHOICES:
-1/7
1/7
-7

please explain thank you!!

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex