Answer:
missing side: 9x -3
Explanation:
length + width + height = perimeter
4x + 1 + 2x - 4 + height = 15x - 6
6x - 3 + height = 15x - 6
height = 15x - 6 - 6x + 3
height = 9x -3
Answer:
y = 5
Step-by-step explanation:
22.5(10-y)+27.5y=250

Combind like terms,

Subtract 225 from both equations to isolate the variable.

Divide both sides by 5 to isolate the variable and solve it.

For the shaded bit all you need to do is 8.5 × 6.
if you are to get the other bit then do 8.5 × 8
if it is to be both then just do that and add them together