Answer:
= 9.2 cm
Step-by-step explanation:
D = C ÷ π
= 29cm ÷ 3.14
= 9.2356
= 9.2 cm
0.4 is

and that simplified is

because you take the GCF or Greatest Common Factor, which is two, and divide both parts of the fraction taking

and turning it into
Store a is 3.125 per orange
store B is 3 Per orange
So store B has the better unit cost
you get the unit costs by dividing the amount by the prices.