6a+8b; when a variable is next to a coefficient then that means they are multiplying each other, we just don't know what a or b is.
Answer:
1245
Step-by-step explanation:
-Given the standard deviation is $9000 and the margin of error is $500.
-the minimum sample size at a 95% confidence level can be calculated using the formula:

Hence, the minimum sample size is 1245
*Since there's no data fromw which we are drawing our variables, we can manually input our parameters in excel and calculate as attached.
Answer:
11877
Step-by-step explanation:
11100 * 7% = 777
11100 + 777 = 11877
When you multiply by 7%, you get the amount of additional tax. You add this to the original amount to get the answer.
Answer:
11880 ft
Step-by-step explanation:
12 in = 1 ft
142560/12 = 11880