Answer:
1) 1.96
2) 6
3) 4/3
Explanation:
think of exponents as repeated multiplication. the exponent is how many times you're going to multiply the number itself by.
1)
is really just 1.4 * 1.4, which you can solve by long multiplication or a calculator to get 1.96
2) for this one, you can rewrite the expression as a fraction. you'll also want to use PEMDAS, starting with the parentheses
3)
you can rewrite the division as a fraction again, only this time. you can change the subtraction to the reciprocal of the denominator
hope this helped!