Answer:
The number of units sold increased by 
Step-by-step explanation:
Vacuum dealer sold units in 2011 = 420
Vacuum dealer sold units in 2012 = 467
We need to find percent increase or decrease
Since, In 2012 units sold are greater than 2011, so there will be percent increase.
The formula used is: 
We have New Value (Units sold in 2012) = 467
Original Value (Units sold in 2011) = 420
Percent increase is:

So, The number of units sold increased by 
Answer:
the explanation that connects the point to the examples provided
Step-by-step explanation:
i just took the quiz
Answer:
a) the multiplier is the years
b) cost of iPhone = 600 + 600* (.1x)
c) f(3) = $780
d) f(-2) = 480
Answer:
C
Step-by-step explanation:
3.806millions is
3.804*10^7
if we the add up the two populations it equals
6.41*10^7
Answer:
2 or wrong answer 55
Step-by-step explanation: