Which sequence matches the recursive formula? an=2an-1+5, where a1=5. a) 5,10,15,20 b) 5,15,35,75. c)5,15,25,35. d) 5,20,35,40

The recursive formula

means that, to compute the next value, you have to double the previous one and then add 5.

So, we start with 5. To get the second term, we double it and add five, so we have

Next, we will double 15 and add 5:

So, the answer is B, because it's the only option starting with 5,15,35.

Just to check, let's compute the last step:

Which confirms option B

If the total before taxes and tips is $24.39 than Tax would be 24.39 times 0.06 which is $1.46 and You add that to the cost which would be 24.39 + 1.46 would be 25.85 and tip would be 18 percent of that value which can be found by 25.85 times 0.18 which is 4.65 and than u add tht to the cost which is $30.50 therefore the total cost is $30.50