25% off means that they are paying 75% of the original price. Multiply d by 75%:
0.75d
Now you need to multiply the price by 1 plus the sales tax to get the total cost:
0.75d x 1.08
Simplify by multiplying 0.75 by 1.08 to get:
0.81d
Answer:
a) c = 1/15
b) =2/5
c) = 3/5
d) No, it cannot be the PMF of y.
Step-by-step explanation:
We have that

Answer:
Because
Step-by-step explanation:
4 4/10 = 4.4 and 32/10 = 3.2
4.4 is bigger than 3.2 so that's why 4 4/10 is bigger.
Answer:
y = 7 
Step-by-step explanation:
Use the given ordered pairs to find a and b
Using (0, 7 ), then
7 = a
(
= 1 ), thus
a = 7
y = 7 
Using (5, 1701 )
1701 = 7
( divide both sides by 7 )
243 =
( take the fifth root of both sides )
b =
= 3 , thus
y = 7