Ravi is planning to buy concert tickets for himself and a small group of friends. the tickets cost $21 each plus a $5 transaction fee. ravi is not sure yet which of his friends are going to the concert. how much can ravi expect to spend on tickets? write an equation for the problem then use the equation to answer the question.

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?