Answer:
I believe its C?
Step-by-step explanation:
Answer:
558
Step-by-step explanation:
930
x 0.40
-------------
372
Next
372
-930
-----------
558
Hope this helped!
Answer:
0.25
Step-by-step explanation:
we have

we know that

substitute

Remember that

so

Answer:
Opt. 1 -3 ≤ x ≤ 3
Step-by-step explanation:
Inequalities are regions, the attached picture shows us a region located between -3 and 3, the dots used are solid, this means that the value '3' is include in the region.
Hence the variable is narrowed to -3 and 3.