Answer:
C. $7.70
Step-by-step explanation:
First, you have to calculate the 10% of the price and subtract that from the price to find the amount of the discount:
$27*10%=$2.7
Now, you can add the amount of the discount plus the coupon to find the amount that the customer saved:
$5+$2.7=$7.7
According to this, the answer is that the customer saved: C. $7.70
Perpendicular slope is 4/5
Answer: 
Step-by-step explanation:
Given :




From rules of probability :
........................... equation *
can be written as
x
Also ,
can be written as
x 
substituting into equation * , we have


since P(B) = 0.7, then 
so , substituting each values , we have



Catie used 28 beads on the 7 in. wire because when you divide 68÷17 you get 4 which means that she used 4 beads every 1 in. Then you multiply 4×7 because that's how much we need to figure out and you get 28.