12% of 130 is 15.6 hope it helps!
Answer:
A
The correct option is B
B

C

D
The correct option is D
Step-by-step explanation:
From the question we are told that
The sample size is 
The number that developed nausea is X = 50
The population proportion is p = 0.20
The null hypothesis is 
The alternative hypothesis is 
Generally the sample proportion is mathematically represented as


Generally the test statistics is mathematically represented as
=> 
=> 
=> 
The p-value obtained from the z-table is

Given that the
then we fail to reject the null hypothesis
-3n+48=0
-3n=-48
-3n/-3 & -48/-3
n=16
100 markers per box
10x10
10- one pack
10- packs in a box
Answer:
24 red marbles
Step-by-step explanation:
Ok, why not let R = number of red marbles.
The first sentence says:
3 * R = (33 and 1/3) % * R + 64
or
3R = 100/3 %*R + 64
3R = (1/3)*R + 64
9R = R + 192
8R = 192
R = 24 red marbles