A video game enthusiast is planning to attend a convention where the latest technologies, products, and games will be show-
cased. There is a $75 registration fee to attend the convention.
She plans to stay at a hotel with a daily rate of $210 and spend
$30 on meals per day.
Create an equation to represent her expenses for the convention
based on the number of days she will be in attendance. Then,
use your equation to answer the following question.
How much will she spend to attend the convention for 3 days?

240x + 75, $795 for 3 days

Step-by-step explanation:

$75 is not affected by the number of days she will be there, meanwhile, hotel and meal costs are. So, we will use x to represent the number of days and create an equation.

210x + 30x + 75

Then we can combine like terms

240x + 75

Using our new equation, we can solve for the total cost of 3 days.

240(3) + 75 = 795

3 days will cost $795

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.