Uber made a formal €13 billion offer to acquire Delivery Hero. The move was lodged in a filing with investors. The goal is to expand Uber’s services beyond solely ride-hailing. Delivery Hero agreed and described the plan as part of its own effort to branch out. Bosses outlined plans to merge food delivery with ride-hailing, but provided few updates on savings. Analysts cautioned the scale of the deal could bring problems. They pointed to tough merging and doubts over whether the valuation is fair.