Circumference= diameter x pi
12x3.14 = 37.68
<span> C. -8 or 8
</span>
4 |-8| = 4*8 = 32
4 |<span>8</span>| = 4*8 = 32
Ab + 2a + 5b + 10
= a(b + 2) + 5(b + 2)
= (b + 2) (a + 5)
C, if there is an odd number of negatives it is negative, if there is an even number it is positive