Factor completely: 30a^3–18a^2b–72b+120a

Step-by-step explanation:

30a³ - 18a²b - 72b + 120a

5 · 6a³ + 3 · 6a²b + 12 · 6b + 20 · 6a

6(5a² - 3a²b - 12b + 20a)

5a² - 3a²b + 20a - 12b

(5a² - 3a²b) + (20a - 12b)

a²(5a - 3b) + 4(5a - 3b)

(5a - 3b) (a² + 4)

6(5a - 3b)(a² + 4)

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!