Answer:

Step-by-step explanation:
Translating the phrase into an equation, we get:

And:

So the system of equations would be:

If you want to put it into slope-intercept form, you can simplify both equations:


Answer:
a. 
b.

c. For David to achieve three hundred dollars, he would have to save approximately 5 months
Step-by-step explanation:
A. David requires three hundred dollars, this is his goal, indicating the three hundred must be alone. For the inequality sign, the statement says that he "requires at least $300", meaning that he would have to maintain three hundred dollars or his amount could go greater than $300. Therefore, the inequality sign should be "≥" or "greater than or equal to". We also know that David can save 63 dollars per month, meaning that there should be a variable next to 63 so we could replace "x" with any number to solve our inequality. This should leave us with the following inequality :
63x ≥ 300
B. To solve the inequality, we need to get x alone, to do so, divide 63 by both sides,


To make it easier, we can round "4.76" to 5.

C. Already shown in the answer spot
Answer:
Function B
Function A
Function B
Step-by-step explanation:
Answer:
18 Laptop models were sold.
Step-by-step explanation:
27/3=9
9*2=18
Answer:
{-3, -1, 1}
Step-by-step explanation:
Zeros refer to x-intercepts. X-intercepts are x values when y = 0. You can tell where they are by looking at where the line passes the x-axis.
Therefore, {-3, -1, 1} are the zeros.