x<2
Step-by-step explanation:
-1>-2(x-4)-5(4x-7)
-1>-2x+8-20x+35
-1>-22x+43
when a negative number crosses to a side, the sign changes
22x<1+43
22x<44
22x/22<44/22
x<2
To find the domain of a radical set the radicand >=0 and solve.
7x>=0
Divide by 7
X>=0 this is the domain
[0,infinity)
Sum means to add up.
So: 263+378=641
Therefore the sum is 641