. Which expression is equivalent to 4 – (−7)?

A. 7 + 4
B. 4 – 7
C. −7 – 4
D. −4 + 7

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

Change negative exponents to positive. then solve. round to four decimal places

If m_b=mzd= 43, find mzc so that quadrilateral abcd is a parallelogram o 86 137 o 129 43 description