There are 12 girls and 18 boys in a class what is the largest number of froups they can be

Marine exptoration of oil uses seismic waves to locate oil in the seabed. what is a negative impact from seismic waves on the aquatic ecosystem of the ocean? a.seismic waves kill microoganisms b.seismic waves disrupts the sand and causes seafloor erosion c.seismic waves have virtually no adverse affects on marine life d.seismic waves damage the sonar that dolphins and whales use to orient themselves underwater

Jane determines x = 4 and y = 1 is the solution to the following system of equations.

What role does an american citizen play in its own government ?