Marcus said the product of 7/8 x 1& 3/4 equals 9/4. how can you tell his answer is wrong

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

Mr. t has been dating his girlfriend for one year nine months and six days how many hours has mr. t been in a relationship