32/40 is the fraction to 32:40 and if u simplify it, it would be 4/5
J= obtuse
K=right
L=acute
M=acute
Answer:

Step-by-step explanation:
Volume of a rectangular pyramid is given as = 
Where,



Plug in the above values into the formula for volume of rectangular pyramid:



Volume of the rectangular pyramid = 
Wow… how is this a question? .-.
Because JKLM is a parallelogram, MT = TK.
MT: 8y + 18
TK : 12y - 10
MT = TK
8y + 18 = 12y - 10
8y - 12y = -10 -18
-4y = -28
y = -28/-4
y = 7
MT: 8y + 18 → 8(7) + 18 = 56 + 18 = 74
<span>TK : 12y - 10 </span>→ 12(7) -10 = 84 - 10 = 74
The value of y is 7.