Question: Evaluate the given expression by performing the indicated operations. 12 - 7( -2) + -3 Select the correct choice below and, if necessary, fill in

fill in the answer box to complete your choice. 12 O A.

- 7(-2) + O B. The expression is undefined.Round the given approximate

Evaluate the given expression by performing the indicated operations. 12 - 7( -2) + -3 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. 12 O A. - 7(-2) + O B. The expression is undefined.Round the given approximate number (a) to three significant digits and (b) to two significant digits. 7854 The number 7854 rounded to three significant digits is

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