Step-by-step explanation:
1) = {5(x+y)} - 2x
= 5x + 5y - 2x
= 3x + 5y
2)= {2(p×q)} + (p×q)
= (2p×2q)+ p×q
= 4pq + pq
= 5pq
3)= 6a + (8b + 2a)
= 8a + 8b
= 8(a+b)
4)= 3x² + ( x²+7x)
= 4x² + 7x
= x(4x+7)
5÷3=1.66
1.66×8=13.28, round to 13.3
No because the hundred place doesn't move.
(-∞,∞),{x|x Σ R}[-9/4,∞),{y|y≥=-9/4}
They have to pay the 30$ fee first then it depends on how many people are coming with you