If an object has a volume of 2 milliliters and a mass of 10 grams, calculate the density of the object

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅? a. (√4)/4 b. (√15)/4 c. (4π)/2 d. (4√2)/4

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?