(really need on this one! )
robert has $83.00 and is saving for a new skateboard that costs $125.00. he is able to save $7.00 per week. write and solve an inequality for this situation if w represents the number of weeks that robert must save to buy the skateboard.

Hello there!

Robert has $83.00 overall. He needs $125 in total. To earn $125, he saves $7.00 a week.

First, we need to understand how to set up an equation like this, and how to solve properly.

Let's start off with what he has (our constant), which is 83.

83

Now, let's submit 7x, meaning how much he has earned in a specific amount of weeks ($7 per week).

7x + 83

We have the left side of our equation figured out. Now, we have only one number left to submit into our equation - our total.

The total is $125, so put 125 to the right of an inequality sign.

7x + 83 125

Now our goal is to solve for x, the amount of weeks it will take for Robert to buy a new skateboard.

Subtract 83 from both sides.

7x  42

Divide both sides by 7 to solve for x.

x  6 is our solution.

Robert will need to save for 6 weeks minimum to buy a new skateboard.

I hope this helps!

Ican't do any of the other stuff, but i can get you started. the answer, i believe, is $2.50.