How to cancel 10+5/12*9l

Chose the graph below that represents the following system of inequality’s

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

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