Racket

Visit Japan: Sendagaya

Would you like to buy a racket?

ラケットはいかがですか。

raketto ikaga desu ka

How to say in Japanese: would you like to...

いかがですか　= どうですか is a way to offer/suggest something.

Note: いかが sounds more polite than どう

For example:

Someone from 居酒屋 izakaya　would probably ask you

ビールいかがですか。

bi-ru ikaga desu ka. 

Would you like a beer?

おかわりいかがですか。

okawari ikaga desu ka

Would you like to have another beer?