Answer: 72 cars.
Step-by-step explanation:
Let be "x" the number of toys that Moby had to start with.
According to the information given in the exercise, Moby sold half his toy car collection. This can be represented with the following expression:

Then he bought 12 more cars, giving a total amount of 48 toy cars.
Therefore, the equation that represents this situation is the equation shown below:

Now you must solve for "x" in order to find its value.
You get that this is:

A polynomial with a degree of 2 can be:
x² + 1
y² + 2
etc..
hope this helps
Do 4 1/4 - 1/4 which is easy, just take away the 1/4 and you get 4, so he used 1/4 gallons
Answer:
y = x [1-
]
Step-by-step explanation:
If the variable x represents the employee's pay before tax-exempt expenses and taxes are removed and y variable represents the employee's take-home pay after these deductions and if fifteen percent of an employee's taxable income is collected each paycheck, then y is given by
y = x [1-
]. (Answer)
For, example, an employee's payment is deducted by $350 at the rate of 15% tax and other deduction.
Therefore,
, ⇒ x = $2333.33 is the before tax income of the person.
You can a linear equation when the line go between the margin and when it have a straight line