The domain of f(x) = logb x is the set of all positive real numbers.
a. true
b. false

True

Step-by-step explanation:

Domain is the set of x values for which the function is defined.

The given logarithm function is

Now, we know that logarithm function is defined for those x values which are greater than zero.

Hence, the domain of the given equation is x >0

The base b should be greater than 0 except 1.

Therefore, the given function is not defined for negative values of x and at x =0.

Hence, we can conclude that the domain is the set of all positive real numbers.

The given statement is true.

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

susie has 7 apples