Help please A square flooring tile has an circular design printed on it. If the tile is 4m long on each side, what is the area on the tile not covered by the design.

Can someone show me in detail how to solve this?

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

State if the two triangles are congruent. if they are, state how you know?

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?