Answer:
b = -9
Step-by-step explanation:
-12 = 24 + 4b
Subtract 24 from both sides
-12 - 24 = 24 + 4b - 24
-36 = 4b
Divide all sides by 4
-36 ÷ 4 = 4b ÷ 4
-9 = b
-Chetan K
The formula for a sequence with first term = 1.7 and common difference 0.5 is: 
Step-by-step explanation:
The first term and common difference are used to induce a formula for the arithmetic sequence
The explicit formula for a geometric sequence is:

Given
First term = a1 = 1.7
Common Difference = d = 0.5
putting the values in the formula

The formula for a sequence with first term = 1.7 and common difference 0.5 is: 
Keywords: Arithmetic sequence, Common difference
Learn more about arithmetic sequence at:
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Answer:
D
Step-by-step explanation:
Answer:
The answer is D
Step-by-step explanation: