Answer:-1.8 do good on the rest of your test`
Step-by-step explanation:
Answer:
Please see the attached file the complete answer.
Step-by-step explanation:
Multiply 270 × 7/100, which equals to 18.9, and then subtract 270 - 18.9, which gives you 251.1.
Answer:
a) 
b) 
Step-by-step explanation:
If each curved path has 52% of the previous height this means that 
Then the radius of convergence is 0.52 and this is a geometric series.
The geometric series have the form:

Where
is the first term of the series and r is the radius of convergence.
In this problem
meters = 50 cm

a) Then the rule for the sequence is:

b) we must calculate

H + m = 480
h = 2m
2m + m = 480
3m = 480
m = 480/3
m = 160 <=== there were 160 math books
h = 2m
h = 2(160)
h = 320 <=== there were 320 history books