1. Aminah starts with $0. She gets a job and starts saving $3 a day. She goes to the mall and can only spend how much she has saved or less. X is days. Y is how much she can spend ($$).

Find the nonpermissible replacement for binthis expression.b2/5b +5

Solve the triangle. a = 21°, c = 105°, c = 5

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