The 7th term of the given geometric sequence is equal to: A. 448.
Given the following sequence:
A geometric sequence can be defined as a series of real and natural numbers that are generally calculated by multiplying the next number by the same number each time.
Mathematically, a geometric sequence is given by the expression:
[tex]a_n =a_1r^{n-1}[/tex]
Where:
Substituting the given parameters into the formula, we have;
[tex]a_{7} =7 \times -2^{7-1}\\\\a_{7} =7 \times -2^{6}\\\\a_{7} =7 \times 64[/tex]
7th term = 448.
Read more on geometric sequence here: brainly.com/question/12630565