Can somebody help me with them ??

More than 60% of the soldiers on both sides were lost at Gettysburg = FALSE

The Confederates lost about a third of the army they came with in this battle and that was the highest proportion lost because the Union did not lose as much.

Stonewall Jackson was accidentally shot by his own men prior to the battle of Gettysburg = TRUE

Stonewall Jackson was shot almost two months before the battle of Gettysburg by his own men as he returned to camp. He subsequently died in the coming days.

The battle of Gettysburg started because Confederate soldiers were looking for shoes = TRUE

The battle started after both Union and Confederate soldiers noticed themselves in the town when some Confederates had gone to look for supplies including shoes.

After suffering serious losses, Lee retreated with his army back to Virginia in pelting rain.  = TRUE.

General Meade correctly predicted Lee's strategy and inflicted heavy losses on the Confederates, forcing Lee to retreat back to Virginia as the rain pounded them.

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.