"A circle has 360 degrees, so 60/360 is 1/6th of a pizza, and 45/360 is 1/8.
The area of a circle is (pi)r2
The area of the 6" pizza is 1/6(pi)(62 )=6(pi)
The area of the 7" pizza is 1/8(pi)(72 )=6.125(pi)
6.125/6=1.021, so the 7" pizza is 2.1% bigger
$1.70/$1.50 is 1.13, or 13% more expensive.
The 7" pizza is 13% more expensive, but only 2.1% bigger, so the 6" pizza is a better deal."
#20 Legibly. Or it would be completely black.