∠c and ∠d are vertical angles.

m∠c=x∘ and m∠d=(−3x+80)∘ .

what is m∠c ?

enter your answer in the box.

 The required measure of angle C is 20°.

Step-by-step explanation:  Given that ∠C and ∠D are vertical angles, where

m∠C=x° and m∠D=(−3x+80)°.

We are to find the measure of angle C.

We know that the measures of two vertical angles are equal.

So, according to the given information, we must have

Thus, the required measure of angle C is 20°.

answer;

the correct answer

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answer:   x*94 +688*6   = 267*100

94x+4128=26700    

94x=22572     /94

x=240.128

step-by-step explanation: mark as brainlest reallly need it thx