Kelly’s first four test grades of the period were 80, 72, 96, and 88. which inequality represents the grades she can earn on the fifth test to have a test average of no less than 80?

The table shows a pattern of exponents. what is the pattern as the exponents decrease?

Suppose there is a simple index of three stocks, stock abc, stock xyz, and stock qrs. stock abc opens on day 1 with 4000 shares at $3.15 per share. stock xyz opens on day 1 with 5000 shares at $4.30 per share. stock qrs opens on day 1 with 6000 shares at $4.60 per share. the price of stock abc on day 8 begins at $3.50. the price of stock xyz on day 8 begins at $3.90. stock qrs opens on day 8 with a price of $4.50 per share. assume that each stock has the same number of shares that it opened with on day 1. what is the rate of change of this simple index over 1 week?

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?