Question

find the missing number (a). 75 ,100,25, __,__,__​

Answer 1

Answer:

a3 =a1+(n-1)*d =25+(3-1)*25 =75

a4 =a1+(n-1)*d =25+(4-1)*25 =100

a1 =a1+(n-1)*d =25+(1-1)*25 =25

Step-by-step explanation:

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