Answer:
, x = $6
Step-by-step explanation:
The expression 
to represent the store's weekly profit in dollars, where x represents the price of a new video game.
Let 
We need to rewrite this quadratic function in the vertex form.
The equivalent expression that reveals the video game price that produces the highest weekly profit is
and the price is $6
Answer:
1.58
Step-by-step explanation:
So, we know there are 2.1 pounds, and for every pound it costs 0.75 dollars.
We can multiply the 2.1 by the 0.75 to find our answer.
The easiest way to do this is multiply the two numbers on 2.1 seperatly:
2 * 0.75 = 1.5
0.1 * 0.75 = 0.075
Then add them together:
1.5 + 0.075 = 1.575
Now we can round this to the nearest cent(hundreths place), and since the thousandths place is 5, we round up:
1.58
So our answer is $1.58!
Hope this helps!
Answer:
40 girls
Step-by-step explanation:
Set up a proportion where x is the number of girls in band class:
= 
Cross multiply and solve for x:
3x = 120
x = 40
So, there were 40 girls in band class.
An exponential decay function is a function that decreases in quantity. Hope this helps
Answer:
-25
Step-by-step explanation:
· 
Multiply the whole number by the numerator
-25 Then simplify by dividing 175 ÷ 7
