Which of the following options is an equivalent function to f(x) = 2(5)^2x?
a f(x) = 50^x
b f(x) = 100^x
c f(x) = 2(25)^x
d f(x) = 4(25)^x

The correct answer is

c. f(x) = 2(25)^x

Step-by-step explanation:

5x+2x=49

7x=49

x=7. 35 apples

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.