Answer:
A
Step-by-step explanation:
3(1+1)<1+6
3*2<7
6<7
3(1+0)<0+6
3*1<6
3<6
_______
a10 = 10 + (10 - 1) × 1
a10 = 10 + 9 × 1
a10 = 10 + 9
a10 = 19
ddfdfd
x = 30
2x = 60
2x + x = 90
3x = 90
2(30) = 60