I need question 4,5,6 can anyone help please

Why did roosevelt support a “europe first” strategy even though it had been japan that had first attacked the united states?

How did the new working class of the industrial revolution differ from the working classes of the earlier, farm based economy?

Examine this list of events that took place in china during the 20th century. which event or events could possibly have been a cause of the great leap forward? a. i only b. i, iii, and iv c. i and iii d. iii and iv