Find the digit that makes _2440 divisible by 9.

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

This is so hard and it’s for a test

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.