Answer:
5h -2
Step-by-step explanation:
(6h + 1) - (h+3)
= 6h + 1 - h -3
= 5h -2
Ok, let us use "C" as our variable that will equal the normal price.
(C - $.75) 7 = $2.80
Divide both sides of equation by 7
C - $.75 = $2.80 / 7 Add $.75 to both sides of equation
C = $.40 + $.75
C = $1.15
Answer: Expected value would be 
Step-by-step explanation:
Since we have given that
Number of multiple choice question = 4
Number of true false questions = 2
Number of points for each multiple choice question = 3
Number of points for each true false question = 1
Number of choices in multiple choice = 5
Probability of getting correct answer in multiple choice question = 
Probability of getting correct answer in true false question = 
Expected value of the student's score on the test would be

Hence, expected value would be 
Answer:
Add 4 to each side.
Step-by-step explanation:
y−4=3
(y-4)+4=3+4
y=7
One batch = 3 3/4 + 1 5/8
one batch = 3 6/8 + 1 5/8
one batch = 4 11/8
one batch = 5 3/8 pound of flour
One week = 86 pound
86 ÷ 5 3/8 = 86 ÷ 43/8
86 ÷ 5 3/8 = 86 x 8/43
86 ÷ 5 3/8 =16
She makes 16 batches of pasta