We first add 4 to both sides to get 2x = 11. Then, we divide both sides by 2 to get that x = 5.5.
I'm doing well, thank you!
I'd give my estimate as 19+16+13+10+7+4+2+8+4+4+2+2+1+2+1 = 95 rectangles.
You're welcome!
We could also use the quadratic formula for this problem. Substituting 1 in for a, -2 in for b, and 2 in for c, we get that the roots of x^2-2x+2 are (2 +- √4-8)/2, or 1 +- i, like CPhill got!
Thank you, CPhill!
You have to count the number of closed circles in each number, so 6=1 since it has one closed circle. 2876 has 3 closed circles, so 2876 = 3.
CPhill's actually right, I posted mine as a joke.
A cat will go after ducks, spiders, and bees so it receives $72.
