Suppose that one euro costs $0.80 on january 1. suppose that on march 1, one euro costs $0.75. what has happened to the value of the dollar (in terms of euros) over this period?

The value of the dollar increased over the period

Explanation:

In March, the euro could buy a less amount of dollar compared to January. We can say the dollar became more expensive compared to the euro or the value of the dollar increased.

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"we first find value of tax in dollars.

the difference between the two prices   is: 23. 54 - 22 = 1.54

therefore the sales tax in dollars is 1.54

the tax % will be   (amount of tax / original cost price ) × 100

(1.54 / 22) × 100  → (0.07) × 100 =   7

so the tax rate is 7%

we can double check the answer.

7 % of 22   → (7/100) × 22 → 0.07 × 22 = 1.54

22 + 1.54 = 23.54"