Asimple index of three stocks have opening values on day 1 and day 8 as shown in the table below.

(picture below)

what is the rate of change of this simple index over one week? round your answer to the nearest tenth.
a.–2.0% b.2.0% c.1.2% d.-1.2%

Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls

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?

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)