Answer:
Percy is incorrect
Step-by-step explanation:
I plugged in 9 and 8 for x and both of them did NOT solve it. The only number I know of that can solve it is -7. -7^2=49
-7 multiplied by 7 =-49
(49) + (-49) + 12 = 12
76.5
:)
7 ones, 4 tenths,8 thousandths
(7×1)+(4×1/10)+(8×1/1000)
=7+4/10+8/1000
=7.408