23 cm
30 cm = $8.99
36 cm

i
problem 1
all the pizzas at tony's pizzeria cost the same per square centimetre. how much
does a small pizza cost? a large pizza?

problem 2.

at sals pizzeria, the large pizza costs three-fourths as much per square centimetre as the medium pizza. how much does a large pizza cost?

problem 3.

the number of square cm in the area of a circle is about 3 less than the number of cm in the circumference of the same circle. what is the radius of the circle?