Answer:
7/10
Step-by-step explanation:
In 0.7 we will change the decimal to fraction. First we will write the decimal without the decimal point as the numerator. Now in the denominator, write 1 followed by one zeros as there are 1 digit in the decimal part of the decimal number. Therefore, we observe that 0.7 (decimal) is converted to 7/10 (fraction).
If it's a geometric sequence then:

We calculate the fourth and fifth term of the sequence:

Answer:
In year 4 15.1875 animals.
In year 5 11.390625 animals.
Step-by-step explanation:
5.4×-0.9=n
n=-4.86
(-4/5)/(1/3)=x
X=-2 2/5
X^2 = 7^2 + 24^2x^2 =49 + 576x^2 = 625
x = 25