Solve 3^(x+1) = 15 for x using the change of base formula log base b of y equals log y over log b.

Step-by-step explanation:

To solve this , first we convert the exponential form in to log form

becomes  

now we apply change of base formula to remove base 3

like that log_3(15) becomes

2.46497=x+1

subtract 1 from both sides

x= 1.46497

Step-by-step explanation:

36/60

36/2=18

60/2=30

18/30

18/3=6

30/3=10

6/10

6/2=3

10/2=5

your final answer would be 3/5 of an

hope this !

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.