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Pls answer this question fast urgentwith explanation ​

Answer»

Answer:27

Step-by-step explanation: APPLY formula L=a+(N-1)d L is a last term which is -47 a is first term which is 18 n is TOTAL number of term in an a.p and d is -5/2 then

-47=18+(n-1)(-5/2)

-47=18-5(n-1)/2

5(n-1)=2(47+18)

5n-5=130

5n=130+5

5n=135

After DIVISION answer is

n=27



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