Answer:

Step-by-step explanation:
U+xy
On replacing for u, x and y.
=9+9*7
=9+63
=72
Answer: (x-4)
Step-by-step explanation:
x^2 + 8x +15 is the area
x+5 is the length
x+3 is the width
(x+5)(x+3)=
x^2 + 3x +5x +15
x^2 +8x + 15
34-0.5d=l
34-0.5d=26
34-26=0.5d
8=0.5d
8/0.5=d
16=d
16days
Are you trying to subtract?
If so, the answer is -5,333.