The answer would be 20.
How?
7 + 9 = 16
16 + 4 = 20
4.2 = <u>c
</u> 8
<u>
<em /></u><em>multiply both sides by 8
</em>
4.2* 8 = <u>8</u><u>c
</u> 8
<u>
</u> c = 33.6<u>
</u>
Use this formula: C=2πr. Divide 14/2 to get the radius. Substitute the radius into the formula.
The answer is 14pi units.
<u>Please mark this answer as the Brainliest if it helped! Thank you.</u>
Answer:
graph 1 proportional
graph 2&3 is non proportional
i think
