Answer:
The original price was $43.50
Step-by-step explanation:
Let
x ----> the original price of a video game
we know that
1) The price of a video game increases by 20%
so

The final price is equal to the original price multiplied by 1.20
so

2) The price of a video game decreases by 10%
so

The final price is equal to the price at this moment multiplied by 0.90
so

we have that

solve for x

Answer:
0.00397
Step-by-step explanation:
I am taking a guess. Like I saw this example (5/9)(4/8)(3/7)(2/6)=120/3024=0.0397
Or (5C4)/(9C4)=0.0397 - from chisnau
Follow those steps, but add your numbers . I added one zero bassed on the problem: There are 9 students in a class: 5 boys and 4 girls. If the teacher picks a group of 4 at random, what is the probability that everyone in the group is a boy?
Hope I helped in some way!
Answer:50%
Step-by-step explanation:
20*65 = 1300
That's the price without tax.
Now to find tax:
1300*.035 = 45.5
1300+45.5 = $1345.5
$1345.5 is your total
Answer: I would say the 3rd answer. "If she takes a random sample of the population of working adults in her town, the mean for that group is likely close to the mean for the entire group."