A jewelry maker purchased 20 inches of gold chain. She used 3/8 of the chain for a bracelet. How many inches of gold did she have left?

Jayda's house is located at (1, 5). she can walk in a straight line to get to cristian's house. a fast-food restaurant is located at (11, 0) and partitions the way from jayda's house to cristian's house by a ratio of 5: 1. find the coordinate of cristian's house. me . im a little stuck

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

4+(2+x) can you me solve this problem