Plz help if right i will give brainliest

What percent of 18 is 24? and plz explain thx.

[tex]5 \times1 \frac{12}{13} [/tex] me

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