The circus had one performance at the dewey civic center and one at the atlantic auditorium. the dewey civic center has 1,600 seats. tickets for 85% of the total number of seats were sold. how many tickets were sold.

Step-by-step explanation:

Tickets sold = % * Total number of seats.

% = 85/100 = 0.85

Total number of seats = 1600

Tickets sold = 0.85 * 1600

Tickets sold = 1360 tickets sold.

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

astronomers is your final answer! : )