Final answer:
To express seven and fifteen hundredths as a decimal, divide the numerator by the denominator. In this case, 15 divided by 100 is 0.15. The final result is 7.15.
Step-by-step explanation:
To express seven and fifteen hundredths as a decimal, we need to combine the whole number part (7) and the fractional part (15 hundredths). The whole number part remains the same, and the fractional part is written as a decimal by dividing the numerator (in this case, 15) by the denominator (which is always 100). So, 15 divided by 100 is 0.15. Putting it together, we get 7.15.