Answer:
D
Step-by-step explanation:
Because, the biologist wants to find the difference between the population of trouts from two watershed,
Answer:
12 x 12 = 144
Step-by-step explanation:
12 times by 12 is 144
B because 5divided by 5 =1 and 15 divided by 5=3 which would be 1/3 and 1/3 is the opposite or -1/3
Answer: 9 + 10 = 19
-129 x 5 = -645
232 exponent of 2 = 53,824
32 x 400 = 12,800
400 / 23 = 17
53,824 + 12,800 + -645 + 19 + 17 = 66015
Step-by-step explanation:
Use distributive property: a(b + c) = ab + ac
1/3(9a + b) - 1/2(4a + 2b) = 3a + 1/3b - 2a - b = a - 2/3b