Answer:
9
Step-by-step explanation:
it just is
{(3x)}^{2}-2(3x)(5)+{5}^{2}
−2(3x)(5)+5
2
{(3x-5)}^{2}
9890
Step-by-step explanation
7×43×30+5×4×43=9890
$ 103 for each person
the 2nd expression is the answer
