Answer:
10 feet
Step-by-step explanation:
18 × 2 = 36
56 - 36 = 20
20 ÷ 2 = 10
To check work, add all lengths together. 4 sides. 18 + 18 + 10 + 10 = 56
Answer:
-12+25x
Step-by-step explanation:
calculate the like terms
-12+15x+10x
-12+25x
0.423288/0.423 US ton,
divide the mass value by 907.
Answer:

Step-by-step explanation:
Multiplying exponents is the same as adding them.
^2 x ^5 is the same as 2 + 5 = 7
You have to keep the bases the same so your answer is 
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50 girls attended the trip.
80 boy + 50 girls = 130 total students
8x10 =80
5x10=50
multiply both by 10.