Answer:
-$5.50>x>$20
Elena has more than -$5.50 but less than $20.
Step-by-step explanation:
Ok, so the question says that Elena has -$5.50 in her account. That means that she owes someone ( the bank) $5.50.
Elena then mows the lawn which may have paid off her debt. But we don't know that for sure.
All they give us is that Elena has less than $20 in her bank account.
So your answer may look like this:
-$5.50>x>$20
Elena has more than -$5.50 but less than $20.
Answer:
Each friend receives 4 pieces of gum. The answer is B).
Step-by-step explanation:
2 packs of gum=2*8=16 pieces of gum in total,
16/4=4
Answer:
Exact Form: 
Decimal Form: 4.4375
Mixed Number Form: 4 
Step-by-step explanation:
You subtract 12 
from 8 
. Hope this helps!
on the very far left it says (5,-1.5)
Wave Speed = Wave Frequency x Wavelength
You know that the speed of radio waves in a vacuum is 3x10^8 m/s
so you just substitute the values into the equation below.
Wavelength = Wave Speed / Wave Frequency
Wavelength = 3x10^8 / 5x10^9
Wavelength = 0.06 m
