The function rule c = 10n + 26 relates the number of people n who attend a small concert to the cost in dollars c of the concert. make a table of the input/output pairs to show the cost if 27, 39, and 43 people attend. (3 points) (explain

This is the concept of functions. We are required to calculate for the total cost of tickets if 27, 39 and 43 people attended a concert whose cost was represented by C=10n+26.
To solve for this we substitute the each values in the function as follows;
When n=27
C(27)=10*27+26=296

When n=39
C(39)=10*39+26=416

When n=43
C(43)=10*43+26
=456

6(2x + 5y)6 (2x) = 12x6 (5y) = 30y12x + 30y