Use the grid to create a model to solve the percent problem. what is 40% of 30? 2 5 10 12

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

Write 37/22 as a decimal rounded to the nearest hundredth.

What graph represents an even function