What does this expression represent? 12f + 24
1. twenty-four more than twelve plus a number
2.twelve times the sum of a number plus twenty four
3.twenty-four more than twelve times a number
4.twelve times the difference of a number and twenty four

3

Step-by-step explanation:

when you see a variable with a number it means a number times a number. so for instance if you see 2x its 2 times a number x. then you see +12 which means addition therfore when you have a bag of apples and u add apples to the bag you have two more apples in your bag of apples if that nakes sense.

hope that helps!

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.