The mass of a carbon atom is 1.994 × 10-23 grams. the mass of a hydrogen atom is 1.67 × 10-24 grams. what is the difference of their masses?
a. 0.324 × 10-24 grams
b .1.827 × 10-23 grams
c .1.827 × 10-24 grams
d. 0.324 × 10-23 grams

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

Ana drinks chocolate milk out of glasses that each holdof a liter. she has of a liter of chocolate milk in her refrigerator. 10 how many glasses of chocolate milk can she pour?