For what values of x, the numbers `-2/7`,x, `-7/2` are in G.P.?

For what value of x , the numbers -5/9 , x , 9/5 are in G.P?

For what values of x, the numbers 3/8 ,x, 8/3 are in G.P?

For what value of x the mode of the following data is 5? 1,2,5,7,5,2,5,9,2,3,x,11

Find the value of x , (2x + 5) = -7

Solve for the value of x : (2x - 4)/(x + 7) = 5/7

Solve for the value of x : (5x-7)/3x =2

Three distinct numbers x,y,z form a GP in that order and the numbers 7x+5y,7y+5z,7z+5x form an AP in that order. The common ratio of GP is

Find the values of p so that the lines (1-x)/3 = (7y-14)/2p = (z-3)/2 and (7-7x)/3p = (y-5)/1 = (6-z)/5 are at right angles.

If x, 2y, 3z are in A.P where distinct numbers x,y,z are in GP then the common ratio of the G.P. is

The value of the polynomial 4x-7x^2+5x^3+4 at x=-1 is 10