Find the gretest and smallest prime numbers between 30 and 80?

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

Agrid shows the positions of a subway stop and your house. the subway stop is located at (-5,2) and your house is located at (-9,9). what is the distance, to the nearest unit, between your house and the subway stop?

Students planted 6 equals size gardens on earth day. they divided each garden into three equal sections and planted herbs in 2 of the 3 sections what fraction of the gardens did the students plant with herbs.