. What is the circulatory system in Echinoderms called?
A complex system
a blood based system
a water based vascular system
a saline based system

pls help

Aparking lot is to be 400 feet wide and 370 feet deep. how many standard-sized cars fit in this lot considering a double-loaded (w4) two way traffic set up, an angle of 90° and a sw of 9’ 0’’? (do not consider handicapped parking spaces, and consider 15’ for turning aisles). show your work.

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?