The product of 2 and a number increased by 2 is equivalent to -1 increased by the same number​

Don't know how to find x given these segment lengths

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b

Olivia is using 160 quilt squares to make a red, yellow, and blue quilt if 25% of the quilt are red and 30% are yellow how many quilt squares are blue