A student measured the mass of some sodium chloride for a lab. The lab called for 6.25 g (the accurate measurement), but the student measured 6.00 g instead. What is the percent error for this mass?

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

If the dimensions of a rectangular prism are 5 ft x 3.5 ft x 2 ſt, what is the surface area?

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