An art teacher buys 4 packs of oil paints. Each pack contains 18 tubes of paint. Which equations represent the total number of tubes of paint the teacher bought? Check all that apply.
4x 18 = 72
18 + 18 + 18 + 18 = 72
22-4 = 18
18 + 4 = 22
72 - 18 = 4
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it’s answer 18+18+18+18

Step-by-step explanation:it’s basically18 times 4

4 × 18 = 72

18 + 18 + 18 + 18 = 72

72 ÷ 18 = 4

Step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

i'm sorry i don't know

step-by-step explanation: