Answer:
A, D
Step-by-step explanation:
A. 5x = 20
divide by 5 on both sides
x = 4
D. x/2 = 2
multiply both sides by 2
x = 4
B and C would equal -4
E would equal 64
Answer:
I don't get the question meaning
Answer:
2.72 x 10^4
Step-by-step explanation:
2.4 x 10^4
= 24000
3.2 x 10^3
= 3200
Therefore,
(2.4 x 10^4) + (3.2 x 10^3)
= 24000 + 3200
= 27200
= 2.72 x 10^4
