Suppose that the consumer price index (cpi), which meansures the cost of a typical package of consumers goods, stood at 140.7 in 1990 and 190.7 in 2000. let x=0 correspond to 1990, and establish the cpi in 1998 and 2004. which linear equation best models the cpi? a) y=-5x+140.7b) y=5x-140.7c)y=5x+140.7in 1998, the cpi would be in 2003, the cpi would be

c

step-by-step explanation:

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: