7.50的英语怎么说

"7.50" in English would be "seven point fifty." The number is represented by the word "seven" for the whole number and "point" for the decimal point, followed by the word "fifty" for the digits after the decimal point. The use of "point" to represent a decimal point comes from the practice of using a dot or a small raised period to separate the whole number part from the fractional part in written or printed numbers, which is common in English-speaking countries and many other countries.
Examples:
The price of the item is seven point fifty dollars. (这件物品的价格是7.50美元。)
I need to pay seven point fifty for the parking fee. (我需要支付7.50美元的停车费。)
The temperature is seven point fifty degrees Celsius. (温度是7.50摄氏度。)