Answer:
The answer is 12. There are 12 pens in each pack.
Step-by-step explanation:
Right away, we know that

which means

Then


Let
and
. Then

from which we find

You can use the same ideas above to find the trig ratios for
, starting from the given fact that
.
Because it's before anything else in any equations <span />
Answer:
$820.00
Step-by-step explanation:
x = price yesterday (initital price)
If it is 67% off, then the price is 33% of the initial.
x(.33) = 270.60
divide .37 on both sides
x = 820.00
The price of the suit yesterday is $820.00.