Amanda swims 40 meters per minute. She uses the inequality below to calculate how many minutes, m, it takes her to swim at least 1,500 meters.

Alogical argument that is presented in graphical form using boxes and arrows is called?

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.

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