Answer:
A = 28 cm
Step-by-step explanation:
equation:
A = 
A =
solve:
A = 
A = 7 x 4
A = 28 cm
X is independent because none of the other numbers or variables affects it
Answer:
x > - 33/14
Step-by-step explanation:
(4x-2) -3(6x + 9) < 4
rewrite/ remove parentheses
4x -2 - 18x - 27 < 4
collect like terms / calculate
-14x - 29 < 4
Move the constant to the right
-14x < 4 + 29
Calculate
-14x < 33
Divide both sides
Solution: x > - 33/14
Answer: D, 6 + 8
Step-by-step explanation:
A negative plus a negative always equals a positive. So -(-8) would be +8.
A is incorrect since the 6 was never negative.
B is incorrect since both numbers are negative.
And C is incorrect since the 8 isn't supposed to be negative.
Thank you for the points. Have a nice day.