Answer:
C.
D.
Step-by-step explanation:
We are given that
n=18
Mean, 
Standard deviation, 
c.
Using the formula
D.
Answer:
B
Step-by-step explanation:
its pretty simple just try that answer
Answer:
Step-by-step explanation:
Plan 2: x= number of months
y= the cost per call
19x + 0.04y
19(4) + 0.04(20)
76 + 0.8
76.8
So the total will be $76.8
Answer:
{2, 3, 4, 5}
Step-by-step explanation:
3x + 1 > 4
3x > 3
x > 1.
If x = 1 the inequality is not true,
- but 2 3 4 and 5 will make the inequality true.
Ok so x is the original price and we want to solve if the original price was 48 so x=48. When we substitute this into the equation we get 0.75(48)-0.15(0.75x48). When we simplify this expression we get 30.6. The current price is $30.60. Hope this helps.
