7.  The area of triangle FGH is 21c
m
2
21cm2
. The triangle FGH is transformed using the matrix
(
4
1
5
2
)
(4512)
. Calculate the area of the image of triangle FGH.​

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?

Ihave, but this question is gonna probably get deleted.