Help pls ): .

Step-by-step explanation:

A.2x+3<5

2x<5+3

2x<7 or x<7/2

B.2x-3<5

2x<5-3

2x<2 or x<2

C.3-2x<5

-2×<5+3

-2x<7

-(-2x<7)

2x<-7 or x<-7/2

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.