Which of the following is equivalent to -6 a) ) b) 3*(-2)*(-1) c) -2(4-1) d) 4-16/-2

Name the most appropriate metric unit for each measurement like a length of an carrot

We just started the introduction into circles and i have no idea how to do this.

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b.false