Give three ordered pairs from the table.
Year
1985
1987
1989
Percent
26
30
33
Type year as the first element of the ordered pair and percent as the second element.

please help ASAP!

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