7 * 10 to the negative 8th power and 6 times 10 to the negative base
Both numbers are in scientific notation form, where a number is expressed as a decimal number between 1 and 10 multiplied by a power of 10.
The first number, 7 * 10^-8, can be calculated as follows:
7 * 10^-8 = 7 / 10^8 = 0.00000007
The second number, 6 * 10^-base, is not provided with a specific exponent. So, it can be simplified as follows:
6 * 10^-base = 6 × (1/10^base) = 6 / 10^base = 0.6 / 10^(base-1)
Therefore, without knowing the specific value of the exponent (base), it is not possible to determine the exact numerical value.