Please help me (3 more coming soon so if you want points you can do those too when they come out

What is the least common factor of 6 and 8

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?