You are saving for a skateboard. Your aunt gives you 45$ to start and you save 3$ each week. The expression 45+3w gives the amount of money you save after w weeks. How much will you save after 4 weeks?
To find out how much you will save after 4 weeks, you need to substitute w=4 in the expression 45+3w:
Amount saved after 4 weeks = 45+3(4)
= 45+12
= 57 dollars.
Therefore, you will save 57 dollars after 4 weeks.
To find out how much you will save after 4 weeks, plug in the value of w as 4 in the expression 45+3w.
So, the amount you will save after 4 weeks is: 45 + 3(4) = 45 + 12 = 57 dollars.
To find out how much you will save after 4 weeks using the given expression, 45+3w, you substitute the value of w with 4.
So, the amount you will save after 4 weeks is:
45 + 3 * 4 = 45 + 12 = 57
Therefore, you will save $57 after 4 weeks.