Answer:

Step-by-step explanation:
by the definition of negative exponents:
for all
so long as
.
My answers are 13. B ; 14. C ; 15. C.
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▹ Answer

▹ Step-by-Step Explanation
29 + 18 = 47 → 29/47
Total boys → 100
29/47 * 100
Hope this helps!
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Brainliest is greatly appreciated!
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Answer:
20 games
Step-by-step explanation:
Lets work backwards; *Adding what he gave away or lost*
-Alex started with 16 video games
-Add the games gave to his brother (+2)
-Add the games he sold (+3)
-The number is 3/4 of his games
-Subtract the games he traded with hector (-1/4)
Equation: 16+2+3-6= 3/4 X (variable) *You can choose other than X*
21-6 = 15
15 = 3/4
Take the reciprical of 3/4 which is 4/3 and multiply it by both sides
4/3 x 15 = 3/4 x 4/3
4/3 X 15 = 20!
ALEX STARTED WITH <em>20 GAMES!</em>
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