Keywords
linear equation, variables
Step 1
Define the variables
Let
x-----> number of erasers
y-----> total cost
we know that
------> this is the linear equation that represent the situation
therefore
the answer is y = 0.84 + (0.38)x
You mean 2x3x12? if yes, it is 72.
We know that Ava is paying $2 dollars per week so if L is the money that she owes and t is the number of weeks, and I is the initial debt so we can write an equation like:

Now we can replace the info we have to find the value of I so:

and we solve for I

So the final equation will be:
Answer:
undefined
Step-by-step explanation:
f(x) = 2/ (-5x-10)
Let x = -2
f(-2) = 2/ (-5(-2)-10)
=2/(10-10)
=2/0
= undefined