To everyone up working hard on there schoolwork…..
wow! im sorry you have to stay up so late, go to bed, get some rest and work in the morning.. youll feel better!:) sleep tight!

12r - 8 - 12

you have to combine like terms. below i have bolded the like terms:

12r - 8 - 12

together it combines to:

12r - 20

hope this !

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

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the answer is b.

surface area: 169π

volume: 366π

i got it down.