98. Rahim is 10 years older than his brother Shabbir. However, P years ago Rahim was twice as old as Shabbir. If Shabbir is now N years old and N>P; find the value of N-P. with explanation please..

After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply. a. 9% + 3x2 = 14 + x-1 b. -x+ + 4x + 7 = -32-9 c. 5x + 4 = 3x4 - 2 d. 2x2 + x2 + x = 30

What are the solutions to the equation 4x2+3x=24-x

The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.