How many solutions does this equation have? a + 3 + 2a = -1 + 3a + 4

There are infinitely many solutions of this equation.

Step-by-step explanation:

The given equation :

First we try to solve the above equation  by combining the like terms (by reordering them), we get

Subtracting 3a from both sides (by using subtracting property of equality), we get

, which is absolutely a correct fact.

That means, the equation has infinitely many solutions as a can take any real value .

Thus , there are infinitely many solutions of this equation.

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

c) the median for town a 30" is greater than the median for town b 25"

step-by-step explanation:

town a, median = q2 = 30

town b, median - q2 = 25

so the median for town a 30" is greater than the median for town b 25"