Answer:
Step-by-step explanation:
84 = 2 * 2 *3 * 7
Answer:
You can use Desmos, or any online graph-er to graph the line.
Answer:
a) 32
b) 
Step-by-step Explanation:
Initial pattern has 7 sticks.
Second one has 7+5 sticks.
Third has 7+5+5 sticks.
.
.
.
Sixth has 7+5+5+5+5+5=32 sticks.
$n^{th}$ has $7+ 5(n-1)$ sticks.