Answer:
x = 84
Step-by-step explanation:
If you add up all of the internal angles in ANY pentagon it will be 540, so
x = 540 - (131+108+107+110)
The first two are alike because you have to add 3 to each side for everything to come out even.
Answer: the answer is 3(7+3)
Step-by-step explanation: since 7+3 is in paranthases you add them first to get 10 and you multiply it by the 3 to get 30. We know its correct because 21+9=30.
Answer:
10 books per box
Step-by-step explanation:
40÷4
=10
10×4= 40
Answer:
The answer is 1.5
Step-by-step explanation:
