10. Carl wants to buy a television that costs $400, including taxes. To pay for the television, he will use
a payment plan that requires him to make a down
payment of $150, and then pay $70.50 each month
for 6 months. What is the percent increase from the
original cost of the television to the cost of the
television using the payment plan?

Calculate the total he will pay:

70.50 x 6 months = 423

423 + 150 = 573

He pays a total of 573

Find the difference from what he pays to what the actual price was:

573 - 400 = 173

Divide the difference by the actual price:

173 / 400 = 0.4325

Multiply by 100:

0.4325 x 100 = 43.25% increase

I think the answer would be no.

Stem-and-leaf plots looks like this:

Stem | Leaf
       1 | 2 2 3 6 6
      2 | 2

The stem represents the number in the tens place and every number in the leaf is the number in the ones place and each one is matched up with the stem. So for the 1 stem there would be 12 12 13 16 16. Make sense?

They wouldn't work with things like days of the week because they are more for showing a data set.