More than 4,000 years ago, people in ancient Babylonia used math to calculate how much
land to use for farming and how much of
each crop they harvested. They also used
math to calculate how much tax to charge
people.
Today, we use algebraic tools such as writing
and solving equations, systems of equations,
inequalities, and systems of inequalities to
help us measure and interpretreal-world
scenarios. What twenty-first century tasks do
these tools help us manager
I

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?

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3

What is the maximum of the sinusoidal function