Solve 2(b+c),where b=(2,-1) and c=(0,-2)
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According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?