Dos autos salen del mismo punto. uno viaja hacia el norte a 45 mph y el otro viaja al este a 60 mph. a cuantas millas se hallara uno de otro al cabo de 20 minutos?

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

If the value of cos330°is√3/2 then find cos 165°.

Which strategy is used by public health to reduce the incidence of food poisoning?