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antoniya [11.8K]
3 years ago
9

Which expression is equivalent to 21d + 18

Mathematics
2 answers:
sladkih [1.3K]3 years ago
5 0

Answer:

it’s c

Step-by-step explanation:

i’m smart

ra1l [238]3 years ago
4 0
C! Is the correct answer
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spayn [35]
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b.
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3 years ago
Given line BD is congruent to BC, find the measure of angle B
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Angle BDC:
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Angle B:
x = 180° - 2×57°
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