+ = positive
Positive and positive makes a positive
Negative and negative makes a positive
- = negative
Negative and positive makes a negative
Positive and negative makes a negative
Your answer: +5 - (-1) = 6
+6 - (-3) = +9
Your answer that youre looking for is: 9
Answer:

Step-by-step explanation:
-The locust population grows by a factor and can therefore be modeled by an exponential function of the form:

Where:
is the population after t days.
is the initial population given as 7600
is the rate of growth
is time in days
-Given that the growth is by a factor of 5( equivalent to 500%), the r value will be 5
-The population increases by a factor of 5 every 22 days. therefore at any time instance, t will be divided by 22 to get the effective time for calculations.
Hence, the exponential growth function will be expressed as:
