Question

I’m struggling help ASAP

Answer 1

see explanation

Explanation:

The n th term of an arithmetic sequence is

`a_(n)` = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 40 ( first row )

d = - 4 ( 4 fewer than the row below ), thus

`a_(n)` = 40 - 4(n - 1) = 40 - 4n + 4 = 44 - 4n

That is

`a_(n)` = 44 - 4n

(b)

a₁₀ = 44 - 4(10) = 44 - 40 = 4

There are 4 boxes on the 10 th row