Select all the expressions that are equivalent to 15n-10 8n-23-3n+11+10n+2
20n-5+15n-5
3(5n-2)
5(3n-2)
3p/5-3n+10

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

Can someone me with this? i’m not sure what to put for my equations.