Write fourteen and seven-tenths squared in all forms

Acar traveling at 65 mph leaves 25 foot skid mark what is the ratio of the speed to length of skid mark (feet) in the simplest form

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?