Gio hiked six miles in two hours. At this rate, what is the total number of miles Gio could hike in nine hours?

Proving the parallelogram diagonal theoremgiven abcd is a parralelogam, diagnals ac and bd intersect at eprove ae is conruent to ce and be is congruent to de

16x^2-16x=5 solve the equation by completing the square

Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.