Answer: A. $754.10
Step-by-step explanation:
$320.00 + $486.88 = $806.88
$1,560.98 - $806.88 = $754.10
Because a rational number is basically a fraction or decimal form
Combinations
nCr
you have n items and how many ways are there to chose r of them
nCr=

remember than n! means n times all numbers before like
3!=3*2*1, 5!=5*4*3*2*1
9 stations, how many ways are there to chose 6 of them
9C6=

=

=

=

=

=
84
84 ways
Answer:
x is positive, and y is negative
Step-by-step explanation:
-60° is a fourth-quadrant angle, where x is positive and y is negative.