Suppose

At the same time, we can write

Note that
(just reverse the sum). Let's pair the first terms of
and
, and the second, and the third, and so on:

Now, each grouped term in the sum on the right side adds to 151. There are 52 grouped terms on that same side (because there are 50 numbers in the range of integers 51-100, plus 50 and 101), which menas

But
, as we pointed out, so

Answer:
Original price was $50 x 0.20 = 10
original price $50 - 10 = $40 the sale price before sales tax
Step-by-step explanation:
hopefully it helps
Answer:
$1,008 weekly, $52,416 annually
Step-by-step explanation:
14% of $7200 is 7200 multiplied by .14 (% is decimal multiplied by 100)
.14 of 7200 = 1008
Since you specified the year, I'm going to assume that you need the annual salary based on the weekly salary that she gets from commissions.
$1008 per week, 52 weeks in a year
52 * 1008 = $52416, her commission in 2011
Answer:
-8 is negative and -(-6) is positive. Both are whole numbers. -(-6) is the greater value.
Step-by-step explanation:
-(-6) is the greater value because it equals 6, which is greater than -8 on the number line.
Answer:
-13/5
Step-by-step explanation: