Answer:
6.58
Step-by-step explanation:
divide 1.88 by 2 to get .94 because he gets her drinks half off. Next, multiply by 7 because there are seven days in a week. she will spend 6.58 a week on drinks.
Answer:

Step-by-step explanation:
Given
Sequence: 2, 6, 18, 54, 162,
Required
Determine the 15th term
The above sequence is a geometric sequence. So, first, we calculate the common ratio (r)



The 15th term is calculated as thus:

Where
and 




<em>The 15th term is 9,565,938</em>
Answer:$15.40
Step-by-step explanation:
3 - (7a + 1) =
3 - 7a - 1 =
-7a + 2 <===