Answer:
5r + 2
Step-by-step explanation:
9r-5r+2+r=5r+2
\mathrm{Group\:like\:terms}
=9r-5r+r+2
\mathrm{Add\:similar\:elements:}\:9r-5r+r=5r
=5r+2
Answer:

Step-by-step explanation:

6 regular triangles meet at vertex to form a regular tessellation.
Answer is D.
Hope it helps!
<span>The event definition that corresponds to exactly one outcome of the experiment is that both numbers are 5s.</span>
Answer:
x=26°
Step-by-step explanation:
3x-14+x+90=180
4x-14=90
4x=104
x=104/4
x=26°