Answer:
x>10
Step-by-step explanation:
4(2x + 2) + 12 > 100
Subtract 12 from each side
4(2x + 2) + 12 -12> 100-12
4(2x + 2) > 88
Divide by 4
4/4(2x + 2) > 88/4
2x+2 > 22
Subtract 2
2x+2-2 > 22-2
2x> 20
Divide by 2
2x/2 >20/2
x>10
The mean is just the arithmetic average:
(103+99+90+86+105+96+x)/7=95
(579+x)/7=95
579+x=665
x=86
1)18
2)48
3)56
4)79
5)3
Sorry if I got some wrong I did these in my head