Answer:

Step-by-step explanation:
= 5(7n + 8) - 2(4n + 6)
Distribute
= 35n + 40 - 8n - 12
Combine like terms
= 35n - 8n + 40 - 12
= 27n + 28
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Answer:
5
Step-by-step explanation:
RST all have 90° but T is the only one that also has 5 so by default it has to be 5
Yeah I’m pretty sure it’s d
Answer:
19/40 1.9x0.25=0.475= 19/40
Answer:
<em>900° </em>
Step-by-step explanation:
The interior angles sum = 180° ( n - 2 )
~~~~~~~~
n = 7
180° ( 7 - 2 ) = <em>900°</em>