Answer:
<h2>

</h2>
Step-by-step explanation:
In arithmetic sequence: a₂ - a₁ = a₃ - a₂ {common difference}

Answer:
She will be 17
Step-by-step explanation:
My sister is like that but she's graduating in 22'
Show the triangle in the picture
Answer:
Out of every 5 rectangles 2 shall be purple.
3 scarves have 3 times 5 rectangles.
Thus they shall be 3 times 2 that are purple.
Step-by-step explanation: