Help please!!
A. 0.6
B. 0.4
C. 0.2
D. 0.8

It's B. 0.4

Step-by-step explanation:

the first probability is 0.6 and 0.6+x=1 so x is 0.4

25.2

step-by-step explanation:

2+4x6-8/10= 25.2

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.