Evaluate this exponential expression.

= 9

Step-by-step explanation:

Given that,

Asn expression :

We need to evaluate the above expression.

We know that,

So,

or

So, the value of is 9. Hence, the correct option is (b).

7/2

(decimal: 3.5)

welcome ; )

step-by-step explanation:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)