The Cozy Car Company created a new model of car especially for Japan and Vietnam, which they start
shipping to both countries at the same time.
• The company had shipped 2 of that model of car to Japan by the end of the first month, and the
cumulative total of cars they've shipped triples each month.
The company had shipped 5 of that model of car to Vietnam by the end of the first month, and the
cumulative total of cars they've shipped increases by 11 cars each month.
The company's board assembles at the end of each month to review the cumulative total number of cars
shipped to each country,
What is the first month in which the board will see the cumulative total number of cars shipped to Japan
exceeded the cumulative total in Vietnam?
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yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."