What innovation did johann gutenberg introduce to europe in the 1450s

True or false: after the bonus army demonstrated around the capitol and lobbied senators, the senate passed the bonus billwhat did fdr speak to the american people about in his first fireside chat? how did the new deal assist workers? select all that apply.a, by funding public works projects b. by mandating an eight-hour dayc, by guaranteeing an income raise for alld, by guaranteeing a higher stock market