Pls help i need a good grade in english !!

Recursive formula →

Step-by-step explanation:

Recursive formula given for the sequence is,

and

Therefore, sequence will be,

10, 1, -8, -17........

Explicit formula for an arithmetic sequence is,

Here, n = number of term

d = common difference

Therefore, recursive formula will be,

    = 10 - 9n + 9

    = 19 - 9n

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

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600,000,000,000, or 6e14

step-by-step explanation: