Multiplying monomials and binomials multiply 15w(w+15)

State if the two triangles are congruent. if they are, state how you know?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

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