Which of the below is not one of the properties of logarithms? a; the log of a product (ab) is equal to the addition of log a nad log b b; the log of the sum of a and b is equal to the sum of the log of a and the log of b c; the lof of the quotient of a and b is equal to the log of a minus the log of b d; the log of the quantity a raised to b is equal to the product of b and the log of a

option-B

Step-by-step explanation:

we know that

Sum rule of logarithm:

which is same as

the log of a product (ab) is equal to the addition of log a nad log b

Subtraction rule of logarithm:

which is same as

the log of the quotient of a and b is equal to the log of a minus the log of b

Exponent rule of logarithm:

which is same as

the log of the quantity a raised to b is equal to the product of b and the log of a

so,

option-B is not correct

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.