Tesco and Booker have signed a share and cash merger agreement to form a food business.

Tesco is multinational retailer, while Booker is a food wholesaler.

Both companies involved in the merger are based in the UK.

"As part of the amendment, Walgreens Boots Alliance will acquire all the outstanding shares of Rite Aid."

Walgreens Boots Alliance has announced the amendment and extension of a definitive merger agreement signed earlier with Rite Aid.

As part of the amendment, Walgreens Boots Alliance will acquire all the outstanding shares of Rite Aid.

Walgreens Boots Alliance is a global health company, while Rite Aid is a retail pharmacy chain.

Both companies are based in the US.