Answer:
you will half the recipe, so
50g flour
30g sugar
25g margarine
20g chocolate chips
1 egg
then add together. recipe for 15 cookies will be;
150g flour
90g sugar
75g margarine
60gr chocolate chips
3 eggs
Answer:
(a) 
(b) 
(c) Answer of part a is equation of line which is parallel to y axis and in part by equation of line is which is parallel to x axis
Step-by-step explanation:
We have given points are 
(a) Equation of line is given x = -9
We have to find the equation of line parallel to x= -9 and passing through
x = -9 line is parallel to y axis and so slope will be infinite
Equation of line is given by 
So 
(b) Equation of line is given 
This line is parallel to x axis so slope will be zero
So equation of line will be 
(c) Answer of part a is equation of line which is parallel to y axis and in part by equation of line is which is parallel to x axis
The probability that the sample mean is less than 30 school days will be given as follows:
the z-score is given by:
z=(x-μ)/σ
where
μ- stand deviation
σ-mean
thus the z-score of our information is:
z=(30-28)/9
z=0.222222
hence the probability that the sample mean is less than 30 will be:
P(x<30)=0.5871~58.71%
