X-rays have more energy than ultraviolet waves. What else is true about
X-rays?
O A. They have a shorter wavelength than
ultraviolet waves.
O B. They have a smaller amplitude than
ultraviolet waves.
C. They have a longer wavelength than
ultraviolet waves.
O D. They have a lower frequency than
ultraviolet waves.

A. They have shorter wavelength then ultraviolet waves. is correct

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

and i oop

explanation: