1cm means 1 centimeter
centi=1000 so
1cm=1/1000m
1m=1000cm
so 27cm+1m+80cm=27cm+1000cm+80cm=1107cm=1.107m
(7)^2-4(5)(-6)=
49+120=169 is the answer
Answer:
Below.
Step-by-step explanation:
So let's do this Divide both sides.
equals to,
y+2>2
Cancel out equal terms.
y>0.
Answer: 3 mi/h
Step-by-step explanation:
Here we have to find the speed 
at which Sarah walks to school, knowing the distance 
she has walked and the time 
she expends.
So, in this case we can use the following equation:
Where:
Solving:
This is Sarah's speed
