Answer:
53
Step-by-step explanation:
Check it mate, triangles must add up to 180 and the angles at the bottom are equal right? so we know the top angle is 74 so 180-74 = 106. ok so 106 / 2 = 53.
its 21 obviously
this is because
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Simplify each term.
49 v ^2 + 2352 v ^4
