Answer:
66
Step-by-step explanation:

If $1 is worth 30.23 rubles, just multiply 75 by 30.23
75*30.23=2,267.25
So, he'll get 2,267.25 rubles.
for every completed length of audiobook, Zhen spends 6.5 hours working.
C.Zhen spends 6 1/2 hours working per audiobook
Answer:
18.2
Step-by-step explanation:
A tenth is the first decimal, on the right of your unit. 5 to the sky (round up) 4 to the floor (round down)
I presume this is meant to be exponential.
When f(x) = a(b)^x, a represents the starting value, b represents change, and x represents time.
The population began in 2000 (x = 0). This makes the equation equal to 78,500, which is your starting value and population in 2000.
1.02 means that the initial value is multiplied by 1.02 or 102% each year. Therefore, there is a 2% increase.