Use the distributive property.

is the formula you need do you divide 47.1 by 2 and

so its aproximatly 7.5 or 7.496
19 x 4 is the equation and the answers is 76
n ∈ natural even numbers
Step-by-step explanation:
1 + 3 + 5 + 7 + … + (2n-1)
sum of the first n terms :
Sₙ = n/2(a + Uₙ)
Sₙ = n/2(1 + 2n - 1)
Sₙ = n/2(2n)
Sₙ = n²
∴ so, the solution of n is all natural even numbers