Which of the following are rational numbers?

9.68...
2.010010001…
the square root of 64
−51/5
the square root of 6

Will give brainliest immeadeately true or false: the origin woud be included in the solution set for the inequality: y< 2x-5

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

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