340 tickets were sold for the opening night of the school play. Tickets cost $4 for students and $7 for adults, and ticket sales totaled $2,005. The system of
equations below represents the ticket sales, s = the number of student tickets
sold and a = the number of adult tickets sold.
4s + 7a = 2,005
S + a = 340
How many student tickets were sold?

Brittany has designed four different birdcages, each with the same volume: a square pyramid, a cylinder, a cone, and a sphere. the zoo wants to use one of brittany’s designs but plans to change the volume of the cage. find the design change that would result in the birdcage with the greatest volume. a.) increase the area of the base of the square pyramid by a factor of ten. b.) increase the height of the cylinder by a factor of ten. c.) increase the radius of the cone by a factor of ten. d.) increase the radius of a sphere by a factor of ten.