If Matrix A is equal to [2 1.5 1], so that AB represents the total advertising cost for all three countries, matrix B is
[40000 50000 30000]
The product of the two matrices or AB will yield the total advertising cost.<span />
Answer:
0.04 and $0.04
Step-by-step explanation:
To make 4/100 a decimal you need to divide the numerator by the denominator which will lead to to get 0.04, which is already in terms of money, you just have to add the dollar sign.
Answer:
$142.95
Step-by-step explanation:
Given Original value of the sofa = $349
Rate of depreciation each year = 20%
Number of years = 4
To find the value of the sofa after 4 years use depreciation formula:
If the constant decrease in population be R% per annum. Then the population after n years is 

= 142.9504
= 142.95 (Nearest cent)
Hence, the value of sofa after 4 years is $142.95.
Answer:
you need to do math. it is very easy