If a x b = 2a - 3b + ab, then 3 x 5 + 5 x 3 is equal to?

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Step-by-step explanation:

We know that,

a x b = 2a - 3b + a

We apply this to our problem to identify a and b,

(3 x 5) + (5 x 3)

Part 1: (3 x 5)

a = 3 , b= 5

Apply,

2a - 3b + a

(2 x 3 - (3 x 5) + 3 ) =

(6 - 15 + 3) = -6

Part 2: (5 x 3)

a = 5 , b = 3

Apply,

2a - 3b + a

(2 x 5 - (3 x 3) + 5) =

(10 - 9 + 5) = 6

Putting all together,

(3 x 5) + (5 x 3) =

-6 + 6 = 0

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°