1. Let hardcover books = X
Paperback books would be 4x -3 ( 3 less than 4 times)
Now you have:
X + 4x-3 = 447
Simplify:
5x - 3 = 447
Add 3 to each side:
5x = 450
Divide both sides by 5:
x = 450/5
x = 90
He has 90 hardcover books.
2. 300 miles / 25 miles per gallon = 12 gallons of gas.
12 gallons x $$ per gallon = $48 dollars
3. Subtract base pay from total:
1916 - 800 = 1,116 worth of commissions.
Divide commissions by percentage:
1116 / 0.09 = $12,400 total sales.
4.
Find the median of the heights: 65-50 = 15. 15/2 = 7.5
Median = 50+7.5 = 57.5
The equation would be |h-57.5| < 7.5
Answer:
m=3/2
Step-by-step explanation:
Two points are shown
point 1: (0;-3). 4;3. -2-6
point 2: (2;0)



Answer:
1. im not sure
2. A. a function is a relationship or expression involving one or more variables.
B. for every output there is exactly one input value.
C. f(x)= 2x + 3
3. A. the relation between two expressions that are not equal, employing a sign such as ≠ “not equal to,” > “greater than,” or < “less than.”.
B. they compare different numbers.
C. y<6
Step-by-step explanation:
Solving the expression:
we get 
Step-by-step explanation:
We need to solve the expression: 
Solving:
Using exponent rule:
and another rule: 

So, solving the expression:
we get 
Keywords: Solving Exponents
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Answer:
-9z+27
Step-by-step explanation: