Samantha had 75 necklaces to sell. by the end of the first week, there was only 57 necklaces left. by the end of the second week there was only 38 necklaces left. find the percent decrease in the number of necklaces by the end of the first week. find the percent decrease in the number of necklaces from the end of the first week to the end of the second week?

a. 19,958,400

step-by-step explanation:

hope this

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: