(56 + 45) ÷ 9 = ( __ ÷ 9) + (45 ÷ 9)

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In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b?