Answer:
Line means going on upto point but line segment means limited line
First term (a) = -15
common difference(d)= -9-(-15)
= -9+15=6
So,
12th term(a12)= a +(n-1)d
= -15+(12-1)×6
= -15 + 11×6
= -15+66
= 51
5.880512439 x 10^16
5.880512439 x 10^16Hope this helps!
The answer to 4-6 is negative 2
PEMDAS
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
