Please Help! Evaluate the expression below if a = 4 and
b = -7.
-a? + 2ab

Answers:
A. 12
B. -40
C. -72
D. 44
N

hello, sorry being so rude after all that fighting i found it kind of funny, so as me saying sorry here is an answer!

since the table showed her that   2km = 2000m.

to determine, how many km in 2000m, she would divide by 1000.

= 2000 / 1000 = 2 km.

similarly, for 8000m = 8000 / 1000 = 8 km

cheers to savings

~

your pal papaguy

i would say true? if the unit was informational and it "refreshed your understanding", then true.

x:       y:  

-1         4

0         4

1         6

2         18

3         20