Answer:
45
Step-by-step explanation:
So you have the equation:
(3x - 5) ^(x) - 19
and the value x = 3,
so just substitute in and simplify:
(3*3 - 5) ^ (3) - 19
(9 - 5)^(3) - 19
(4)^(3) - 19
64 - 19
45
Answer:
169
Step-by-step explanation:
You need to use a Z-table for this.
There are different tables, in this table i searched for the probability of 97% because that equivalent to the top 3%.
for 0.97, Z = 1.88
The formula of Z is:

Solving x:

$ 25.00-$10.81=14.19.
14.19-0.38=13.81.
13.81-10.00=3.81.
He can buy 10 packages of the peanuts.
Keep adding by the same value everytime so start with 10,000 then add 20,000 etc