5/9 es mayor o menor a -4/9

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

Simplify (2^5/3^2)^4 a. 2^20/3^8 b. 2^9/3^8 c. 8^5/12^2 d. 2/3^2