The initial number of trees is when t = 0:-
1500 * t^0 = 1500 so the answer is either a or c.
The value 1.02 represents a 2% increase so the answer is Option c.
1546/12 = 128.3333333333333333333333333333333333333
Plural because it has eaten
One of Y is the same amount as two of x...for example if y is equal to 10, x is equal to 5