HELP

I’ll give brainliest to who ever answers today rn the first one plz and ty

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm

the answer is x=45 because i said so

answer is a.

13.268

hope you get it right.

19x+54, simply add up the x values and all other corresponding values to get this answer.