Answers and explanation .
( cousin needs , im terrible with this kind of stuff)
7. 64% of 75 tiles =
8. 10% of 70 plants=
9. 32% of 25 pages=
10. 85% of 40 emails
11. 72% of 350 friends=
12. 5% of 220 files=
13. 4 students is % of 20 students
17. 4% of days is 56 days
18. 60 minutes is 20% of minutes
19. 80% of games is 32 games
20. 360 kilometers is 24% of kilometers
22. 9 stores is 3% of stores
24. 200 songs, 24 of them are country songs. % of the songs are country
25. sales tax= 7%. amanda paid 35$ in sales tax on a stereo. what was the price of the stereo?
27. monica paid a sales tax of 1.50$ when she bought a helmet. if the sales tax rate was 5% how much did the store charge for the helmet before tax?
28. how many hours per day does becky spend on each activity.
sleep: 40%
school: 25%
eating: 10%
free time: 15%
homework: 10%
school: hours
eating: hours
sleep: hours
homework: hours
free time: hours

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.