Answer:
representative heuristics
Step-by-step explanation:
x+3?
honestly, there is not alot of information present here. so when a hear "a number" i think variable.... which would be set up as x+3
we are given
we can multiply -1 on both sides of second equation
we can see that
both equations becomes same
so, they are coincident............Answer
31 animals
1 rabbit + 6 elephants + 6*2=12monkeys + 12 parrots = 31 animals
multiply the population each year by 4% or 0.04
year 1 increase by 9600, population 249,600
year 2 increase by 9984, population 259,584
year 3 increase by 10,383, 269,967
year 4 increase by 10,799, 280,766
year 5 increase by 11,231, 291,997
year 6 increase by 11,680, 303, 677
I rounded the totals.
Answer: 7z²-9z+20
PEMDAS - Please Excuse My Dear Aunt Sally - Parentheses, Exponents, Multiplication, Division, Addition, Subtraction