tertre

No problem! Always here to help!

dang it.............closed the tab, my work is gone!
Anyway, the side lengths one side length is 69 and the other is 61. 138+122=260 units.

smallest square: 2

2nd smallest: 5

3rd smallest: 7

4th smallest: 7+2=9 units

5th smallest: 16 units(9+7)

6th smallest: 16+9=25 units

7th smallest: 16+7+5=28 units

28+25+16=69 units- 1st side

8th smallest: 2+5=33 units

9th smallest(largest): 25+9+2=36 units

2nd side length: 36+25(Or, 33+28)=61 units

Thus, \(69(2)+61(2)=138+122=260\)units.

Set up direct proportion: \(\frac{20*5}{60}=\frac{100}{60}=\frac{10}{6}=\boxed{\frac{5}{3}}\)

Yes, when it goes upstream you have to subtract, but, if it is heading downstream, then you have to add!

Thank you, CPhill!

 You can easily eliminate the months: January, April, June, August, September, October, and December.

And, 2007 was not a leap year, February-9 dates, March-11 dates, May-11 dates, July-11 dates, November-10 dates.

If you add all the number together, you get an answer of \(\boxed{52}.\)

Equations: A=2B, B=0.5C+C. You can also say A=2(0.5C+C), A=C+2C, A=3C

Now, we have A+B+C=$220

Plugging in the values, we have 3C+0.5C+C+C=220

5C+0.5C=220

5.5C=220

C=40

And, B= 0.5(40)+40=20+40=\(\boxed{60}\).

Or, is that a comma after that 220?

We have: \(b=4a, c=5a-17, a=a\).

Since the interior angles in a triangle sum to \(180^\circ\), we have \(4a+5a-17+a=180, 10a-17=180, 10a=197, a=19.7, b=19.7*4=78.8\) and \(c=81.5\). 

See, since 5! ends in a zero, all the factorials after that end in a zero! Test it out, yourself. Therefore, 1! ends in 1, and 3! ends in 6. Thus, 1+6+0+0+0+0=7.

6*1000=6000, and 3*100=300, so 6000+300=6300.