Since the tortoise was 56 years old 11 years ago, we add 11 to 56 to get its current age of 67 years old.
Let the number of nickels be = n
Let the number of dimes be = d
Let the number of quarter be = q
Total money William has = $12.80
As given, there are 3 times as many quarters as nickels

And 20 more dimes than nickels

As total money is $12.80

Putting the values of 'q' and 'd' to find 'n'





Hence the number of nickels are = 12
If you want to also find dime and quarter, then


Answer: 16
Step-by-step explanation:
64.2=128
128/8=16 = High
16.2=32
32/2= 16
Please can you choose my answer for branlest?
Answer:
a₉ = 11
Step-by-step explanation:
Substitute n = 9 into the nth term formula, that is
a₉ = 3(9) - 16 = 27 - 16 = 11