Evaluate log31 over 81 . (2 points)

a
27

b
4

c
−27

d
−4

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?

For what values of a is the sum of the fractions 2a−1 / 4 and a−1 /3 positive?

Answer for 15 points (look at the image)