1.1. A sequence of patterns is made using black counters and white counters.

Draw Pattern 4.

1.2. Complete the table.

1.3. Write an expression, in terms of $n$, for

i) the number of black counters in Pattern $n$,

[2]

ii) the number of white counters in Pattern $n$.

[1]

1.4. Elena has 30 black counters and 140 white counters.

Can she make Pattern 12 using her counters?
Explain your answer.