Adam wants to know the mean number of minutes students spend commuting back
and forth to school each day. He selects a sample of 5 students using the random
digit table beginning on line 12 shown

Line 12: 29621 66583 62966 12468 20345 14015 04014 35713 03980 03024

a. What is the sample size?
b. Adam assigns each student a two-digit number beginning with 12 and ending
with 30.
Which students are chosen for the sample?

idk

step-by-step explanation:

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.

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).