Help me with this answer please!

Show me how you find y and z and determine what y and z are you i appreciate it : )

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

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?