the first term of arithmetic series is 2, the last term is 20 and the sum of all the terms of the series is equal to 110. Calculate the numberof terms?​

-81 -56 -27 0 81

step-by-step explanation:

the opening of this porabola is facing up

step-by-step explanation:

soo this can be solve by using the formula:

f = p( 1 + i)^ n

where f is the future profit

p is the initial profit

i is the percent increase

n is the number of years

a . f = 30000 ( 1.05)^n

b. f = 30000 ( 1.05)^15

f = $62,368

the answer is d

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