Type the correct answer in each blank. For the sequence (-10, -5, 0, 5, 10, 15, 20, . . .), the index starts at 1.

In the sequence, the index of is 1. When n = 5, the corresponding term in the sequence is
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There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4