Answer:

Step-by-step explanation:
Simplifica la expresión
i know its the frist or second one i did the test i am also in flvs :)
Answer:
GH = MN
Step-by-step explanation:
Same as last posted question
Steels is equal to x and plastic pipes is equal to y
5x + 50y = $1000
6x + 40y = $100