Mrs. Park has 3 boxes of crayons. Each box has 12 crayons. Mrs. Park takes c crayons out of each box. Which expression can be used to find the total number of crayons left in these boxes?

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4