Which of the following pairs of values for x and y would justify the claim that the two triangles are congruent?
O x= 3, y = 11
Ox=5, y = 5
Ox=7, y = 9
x=9, y=7

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