Rit Dye Laundry Treatment Color Remover Powder, 2 oz, 3-Pack

We had color bleed onto screen printed numbers on my son's football jersey. Could this take the dye out of the numbers without ruining the jersey?

Have lavender towels that got washed with a red towel and dried. Is there hope this will work?

A black ink pen snuck into the washer with white sheets. Will this product remove ink from pen?

Will it work on a White polyester shirt that went dingy from being mistakenly washed with a dark load?