What is the estimated difference between 7 6/11 - 5 13/15
(The answer should be a mixed number.)

The diagonals of a rhombus are 12 inch and 16 inch long, the length of a side of a rhombus is 10 inch, what is the height of the rhombus

Answer this question only if you know the answer! 30 points and

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2