Given the first term and the common difference of an arithmetic sequence find the recursive formula and the three terms in the sequence after the last one given.
20) 4, -39, d--
a,
22) a = -9.2, d = 0.9
21) 4 =-26, d = 200

it would take 5 hours i think idk i'm not that good at math.can you me with my questions i need asap.

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.