3^x + 4^x = 25
Find x

x=2

3^2=9

+ 4^2=16

9+16= 25

Step-by-step explanation:

hello :

25 =9+16 = 3^2+4^2=25

so x = 2

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.