Need quick help!

Which method would you choose to solve the quadratic equation:

5x^2+11x-7=0

and why??

What describes horizontal cross section of the right rectangle 6m 8m 5m

For what value of (y) is 3^3/3^y =1/9

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4