The price of a sweater went up 20% since last year . If last year's price was x, what is this year's price in terms of x?

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To find this year's price in terms of x, we need to calculate the increment of 20% on last year's price (x) and add it to the base price. Here's how you can do it step-by-step:

1. Calculate the increment amount:
Increment = 20% of x
= 20/100 * x
= 0.2x

2. Add the increment to last year's price to get this year's price:
This year's price = last year's price + increment
= x + 0.2x
= 1.2x

Therefore, this year's price in terms of x is 1.2x.