Arobot is expected to filter pollution out of at least 350 liters of air and water. it filters air at the rate of 50 liters per minute, and it filters water at the rate of 20 liters per minute.
write an inequality that represents the number of minutes the robot should filter air (a) and water (w) to meet this expectations

How do i do this? i don’t understand

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30