Find which one of the given words can be made from the

I. 2p² + 5p + 2 = 0               II. 2q² + 11 q + 14 = 0

Solve for x: 5x − 7 = 3x + 9

3 pens + 5 pencils = ₹49

4 pens + 3 pencils = ₹47

Find cost of one pen.

 If the point of intersection of the lines 2x + y = 11 and x - y = 1 is P(a, b), then the value of a + 2b is:

I. 8/(√x) + 6/(√x) = √x

II. y ³- (14)^7/2 /(√y) = 0

The ratio of roots of an equation

ax²+bx+b = 0 is p : q

Then find, √p/√q + √q/√p + √p/√q ?

Find the value of 'a' and 'b' which satisfy the following equations:

9a + 7b = 30

4a - 5b = 62

For given pair of equations, how many solutions are possible?

4x + 6y = 16 and 8x + 12y = 32

The ratio of roots of the equation mx² + nx + n = 0 is α/ β = a/b, then find the value of `sqrt(a/b)+sqrt(b/a)+sqrt(n/m)`

For given pair of equations, how many solutions are possible?

7x − 3y = 20 and 14x − 5y = 40