Answer:
11.20
Step-by-step explanation:
Multiply both equations by 100:
19.99=1999
8.79=879
1999-879=1120
Divide by 100:
1120/100=11.20 saved ................
Answer:
has 3 significant figures
Step-by-step explanation:
because zeros are counted if they are between the numbers
Answer: Choice C
Closed filled in circle at -3; shading to the right.
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Explanation:
Follow the steps shown below to isolate x. Note that the inequality sign flips when we divide both sides by a negative number.

Here's another way to isolate x

The inequality sign flip happens much earlier when we go from the format of
to
(in step 3)
The graph of this will have a closed filled in circle at -3, then shading to the right to describe all values -3 or larger.
This is why we go for choice C.
Hey there!


When always adding or subtracting, you <em>always</em> have to <u>line up the decimal</u>.
When subtracting decimals with the same sign you <u>Line up the decimal</u>.
Hope this helps!