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