Which of the following is an arithmetic sequence?

0, 2, 4, 6, ...
1, 2, 4, 8, ...
1, -1, 1, -1,...
1, 4, 8, 13, ...

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.