Answer:
Step-by-step explanation:
1) Let the number be y
45%of y=63
45y/100=63
Y=6300/45
Y=140
So 80%of a number =80y/100
=80×140/100
=112.
Let the number be y
35%of y=49
35y/100=49
Y=4900/35
a7=2*5^n-1
2*5^(7-1)
2*5^6
2*15625
31250= a7
The correct answer is A. 31,250.
<em>Hope this helped! Good luck on your test/assignment!</em>
A.
30 since 25 + 5 = 30