X1 − x2 + x3 = 6

2x1 − x2 + x3 = 5

3x1 + x2 + 3x3 = −20

x1 = x2 = x3 =

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64

the answer that is correct is false

a. true

if you are using power tools in or around standing water, you should continue and always proceed with caution.