Answer:
1)20 000 000×12cm
240 000 000/100m
240 000 0/1000
2400km
31.6--1580×100×1000
31.6--1580 00 000
31.6/31.6--1580 00 000/31.6
1:5000000
Answer:
87.5%
Step-by-step explanation:
7/8x100=87.5
X^2 - 16x + 64 =
(x - 8)(x - 8) =
(x - 8)^2
** see ur x term (-16x)....u take half of ur x term, which would be -8, then square it...(-8)^2 = 64...then add that to both sides. Then factor it.
Answer

Step-by-step explanation:

Answer:

Step-by-step explanation:
=> 2 * 2 -5
Multiplying first according to DMAS rule
=> 4 - 5
=> -1
P.s. This is not an equation. This is an expression!