Question

I really need help!!!​

Answer 1

(1)...C-1

2-A...(2)

3-B...(3)

(4)....7x-6=0

(5)...7+4x

(6)...5x-10

(7)...5x= -5

x= -1

(8)....-3x= -9

x=3

(9)....x=2

(10...559100t+6423000=11000000

t=4577000/559100=8.18

Answer 2

which no. buddy??.........