$30 because if you add 30 to those numbers it would give you the next months amount.
Answer:
a+8
Step-by-step explanation:
"sum" tells you to add the two numbers together.
Well, split it into 3 shapes
21 x 10 = 210
3 x 6 = 18
2 x 6 = 12
210 + 18 + 12 = 240 square cm
imahe for more context
plzzz give me brainliest
Answer:
Formula for nth term in Arithmetic sequences is:
![a_n =a+(n-1)d](https://tex.z-dn.net/?f=a_n%20%3Da%2B%28n-1%29d)
where a is the first term, d is the common difference and n is the number of terms.
As per the statement:
The rule for the pattern is add 4.
As the first term in line says the first term i,e 7
![a= 7](https://tex.z-dn.net/?f=a%3D%207)
common difference(d)= 7
As the Jenna number is 8th in line.
Series we get;
7, 11, .........![a_8](https://tex.z-dn.net/?f=a_8)
We have to find the 8th term.
n = 8, a = 7 and d = 4
Using above formula:
![a_8 = 7+(8-1)4 = 7+7 \cdot 4 = 7 +28 = 35](https://tex.z-dn.net/?f=a_8%20%3D%207%2B%288-1%294%20%3D%207%2B7%20%5Ccdot%204%20%3D%207%20%2B28%20%3D%2035)
Therefore, 35 number should Jenna say.
5x7-3x8+11
35-24+11
11+11
The answer is 22