Answer this please correctly and also step by step (-y+5.3)+(7.2y-9)

5/2 decimal form 2.5

Step-by-step explanation: −y+5.3+7.2y−9

=−y+5.3+7.2y+−9

Combine Like Terms:

=−y+5.3+7.2y+−9

=(−y+7.2y)+(5.3+−9)

=6.2y+−3.7

=5/2 decimal form 2.5

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,