Find the discriminant and the number of real roots for this equation.
x + 2x + 7 = 0
A. 28; one real root
B. -24; no real roots
C. -24; one real root
D. 28; two real roots
NBMIT

An apartment has a replacement cost of $950,000 and contents valued at $1,450,000. it has a classification of a and a territory rating of 3. find the annual premium a) $10,185 b) $9,230 c) $3,155 d) $13,830

Solve the system of equations y= 3/2 - 1, -x+ y =-3

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.