There is a total of 30 erasers
10.…….……......................
Answer:
(40-20)/.10
Step-by-step explanation:
40-20 is 20, 20 divided by .10 is 200, she used 200 extra minutes.
Answer:
D. (-9)+9=0
Step-by-step explanation:
Additive inverse means that the sum of the original number and its Additive inverse must add upto 0. In this case, if we add -9 and 9 then we get 0. That's why D is the correct answer.
Open this web, the web is really - really helps....................................
http://www.coolmath.com/algebra/08-lines/11-finding-equation-line-point-slope-01