Number of cartons taken:

ratio of cartons taken : ratio of total cartons
73 : 100
N = -3
5n + n + 6 = -18 - 2n
6n + 6 = -18 - 2n
-6 to both sides
6n = -24 - 2n
+2n to both sides
8n = -24
divide 8 to both sides
n = -3
Answer:
11 terms.
Step-by-step explanation:
The exponent indicates how many time you will multiply 7 by itself.
168 :)
This is because an integer is a whole number, so the largest integer value that is less than 169 has to be 168