The common denominator is 12
Answer:
Step-by-step explanation:
I guess the angles are supplementary, which means they have a sum of 180º.
11x - 15 + 5x - 13 = 180
16x -28 = 180
16x = 208
x = 13
Answer:
if you are looking for the area this are the answers
Step-by-step explanation:
4: 
how: .5 x 25 x 10 = 125
/////////////////////////////////////
5: 
how: .5 x 16 x 13 = 104
remember to put the ".5" when you are multiplying
I hope this help you
have a good night :)
I dont understand number 2, but I can help with number 3.
3. 8*8*8= 512 - 1 = 511 / 7 = 73
(sorry if its wrong, im taking algebra I im in 8th.)