On a survey, 7 students reported how many minutes it takes them to travel to school. Here are their responses. 13, 7, 12, 9, 8, 8, 16
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Find the mean travel time for these students.
If necessary, round your answer to the nearest tenth.
I minutes
Х
5
?

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Find the simple interest earned to the nearest cent for each principal,interest rate,and time 735 7% and two and a half years

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

Geometry in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.