How to write 4 divisors of 240 that are multiple of tens

Can someone me with the property questions for 12 13 and 14 plz

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0