<span>If you imagine a straight line, with -9 all the way on the left, then mark along the line in one number increments until you get up to 7, you will find that in total the line is 16 segments in total. Mathematically, this is a question of absolute value, ie absolute value of -9 = +9, and therefore 9 + 7=16.</span>
Answer:
8 tables
Step-by-step explanation:
since she makes on average $18 per table and wants to make $180 we can just multiply $18 by 10 tables however we have to take into account the $36 she makes per night. 36 is just 18 multiplied by 2 meaning we can subtract a total of 2 tables away from the total of 10 tables to get 8 tables
Answer:
C. 
Step-by-step explanation:
=
so to not get a 2, the experimental probability would be
or C
A). √36 = +6 and -6 . Rational
B). √49 = +7 and -7 . Rational
C). √13 = +3.60555... and -3.60555... . Decimal never ends.
Irrational
D). √121 = +11 and -11 . Rational