You are 19 meters west of a stop sign when you start walking due east. let d d represent the number of meters you have walked since you started walking due east. write an expression (in terms of d d) that represents your distance to the east of the stop sign (in meters).

  d-19

Step-by-step explanation:

When d=0, your position is -19 meters east of the stop sign. When you walk d meters to the east, your distance east of the sign becomes ...

  d - 19

Note that you must walk more than 19 meters for your distance east of the sign to become positive. If you walk exactly 19 meters, your distance east of the sign is zero.

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: