DoorDash said Wednesday it expects to spend more than $50 million in the second quarter on gas price relief for its delivery drivers. The San Francisco-based company said in March that it would offer extra compensation to U.S. and Canadian drivers as part of a temporary program to offset a sharp increase in gas prices due to the Iran war . The national average for a gallon of gas on Wednesday was $4.53, up 44% from a year ago, according to AAA. DoorDash said demand for deliveries remained