It is 25 miles from your house to a friends house which unit conversion fraction should you use to find the distance in kilometers

Which is not a source of noise pollution? a)airplanes b)acid rain c)machines d)cars

Ablock of steel has a density of 0.29lbs per cubic inch. if the block has dimensions of 1 inch by 1 inch by 3 inches, what is its weight? a. 0.29lbs b. 0.58lbs c. 0.87lbs d. 1lbs

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?