Which is a perfect square?
A 20
B 21
C 24
D 25​

Which segments are congruent? o jn and ln o jn and nm o in and nk onk and nm

Find the slope of a line given the following two points

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