Answer:
D
Step-by-step explanation:
40x + 80 > 200
40x (+ 80 - 80) > 200 - 80
40x > 120
40x/40 > 120/40
x > 3
The line needed to have an open circle (x is not greater than or equal to) and it needed to go towards the right on the number line.
Answer:

Step-by-step explanation:
<u>Step 1: Set x to 3
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Answer: 
Answer:
22
Step-by-step explanation:
4x² + 3x = 4(2)² + 3(2) = 4(4) + 6 = 16 + 6 = 22
Answer: 22
Answer:

Step-by-step explanation:
Given

Required
Find 
To find
, we simply substitute 10 for d and -4 for c in the given expression.
The step is as follows:

Substitute 




The expression cannot be solved any further; so, we can conclude that when d = 10 and c = -4, 