Answer:
6x + 3
Step-by-step explanation:
'x' and '5x' are like terms. Combining them will simplify the expression.

Hope this helps.
Answer:
3.9
Step-by-step explanation:
√15 = 3.9, rounded.
Answer:
For x=2, the expression 4(5x-8) will be 4 more than the expression 2(4-x)
Step-by-step explanation:
Given expressions are;
4(5x-8) and 2(4-x)
For 4 more than the second expression, we will add 4 with second expression.
4(5x-8) = 2(4-x) + 4
20x - 32 = 8 -2x +4
20x + 2x = 12 + 32
22x = 44
Dividing both sides by 22

Hence,
For x=2, the expression 4(5x-8) will be 4 more than the expression 2(4-x)
-300>100 that is the answer because its below sea level