Let a, b, c, d, e, f, g and h be distinct elements in the set { −7, −5, −3, −1, 1, 4, 6, 15} . what is the minimum possible value of (a + b + c + d)2+ (e + f + g + h)2?
(a) 30
(b) 32
(c) 42
(d) 50
(e) 52

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

What is the range for 31,39,29,34,37,24,36,33,34,28

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!