Clea estimates that a glass contains 250.55 ml of water. the actual amount of water in the glass is 279.48 ml. to the nearest tenth of a percent, what is the percent error in clea's estimate?

Apackage of bacon holds 15 strips of bacon. the pancake house uses 17 packages of bacon in the morning and 21 packages in the afternoon. how many more strips were used in the afternoon than the morning?

How do i multiply two digit numbers

The high temp today was 62°. when nighttime comes, the temp will drop 40°. by 4am the temp will drop an additional 40°. what is the temp at 4am?