The product of eight minus a number and seven equals forty when decreased by five. which equation represents the sentence?
a)
5(x - 8) - 7 = 40
b)
5(8 - x) - 7 = 40
c)
7(x - 8) - 5 = 40
d)
7(8 - x) - 5 = 40

2^y = ln 5, or   y(ln 2) = ln 5.   solving for y,   y = (ln 5) / (ln 2).   y=5

step-by-step explanation:

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents