Which conversions from scientific notation to standard notation are true? Check all that apply.
1.71 times 10 Superscript 3 Baseline = 0.00171
8.05 times 10 Superscript 5 Baseline = 805,000
2.4 times 10 Superscript 4 Baseline = negative 24,000
8.25 times 10 Superscript negative 3 Baseline = negative 8,250
7.09 times 10 Superscript negative 6 Baseline = 0.00000709
3.99 times 10 Superscript 5 Baseline = 300,099
8 times 10 Superscript 7 Baseline = 80,000,000
1.03 times 10 Superscript negative 4 Baseline = 0.000103

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Ithink i know it but i want to be sure so can you me out ?