Ineed plz dont take over 5 min to answer.

answer:

b

step-by-step explanation:

let's simplify step-by-step.

3x+2y−7−(5x−4y+6)

distribute the negative sign:

=3x+2y−7+−1(5x−4y+6)

=3x+2y+−7+−1(5x)+−1(−4y)+(−1)(6)

=3x+2y+−7+−5x+4y+−6

combine like terms:

=3x+2y+−7+−5x+4y+−6

=(3x+−5x)+(2y+4y)+(−7+−6)

=−2x+6y+−13

=−2x+6y−13

90*

Step-by-step explanation:

Consulting An Architectural Standards Reference Book, She Finds That At This Latitude The Noon Summer Solstice Sun Has A Sun Angle Of 75° And The ... in a city with a 40°N latitude wishes to control sun exposure on a south-facing wall.