Answer:
2x > 0
Step-by-step explanation:

50 × y = x × 100
50y = 100x
50y ÷ 50 = 100x ÷ 50
y = 2x
Answer:
C
Step-by-step explanation:
The inequality says greater than or equal to 8, which means the first two are automatically ruled out because they are both less than/equal to.
Then look at C and D, D starts at 3 and C starts at 8 so the answer should be C
Answer:
60
Step-by-step explanation:
400-160=240
240/4=60
7
This means the cube root of 343 which is 7.
(4 + 2x)(6 + 2x) =
4(6 + 2x) + 2x(6 + 2x) =
24 + 8x + 12x + 4x^2 =
4x^2 + 20x + 24 <==