In 2005, there were 12,458 fish in Hound’s Tooth Lake. After years of drought, there were only 968 fish in 2010. What is the rate of change in the population of fish for 2005–2010?

take the top number and divide it by a the bottom number

step-by-step explanation:

1/2 1 divied by 2 = .5

18a

step-by-step explanation:

simply because it is. it's the highest common factor

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

3-4

step-by-step explanation:

the answer is 3-4 because both 45 and 60 has a multiple of 15.

45/3=15

60/4=15

therefore the odds against selecting a red is 4-3