Which is greater? 30 miles per half hour or 50 miles per hour?

Half an hour x 2 is an hour, so 30 x 2 is 60. 30 miles per half an hour is greater.

30 miles
first convert miles to meters per second since i talk about meters than miles

The skating rink rented 872 pairs of skates during april and may.why? : if the skating rink rented three times the pair of skates in april during may, they rented 654 skates. 218 x 3 = 654then, if they want to know how many they rented during both april and may, then you just add 654 (may) and 218 (april) to give you 872 pairs of skates for both months.654 + 218 = 872hope this !

It is b as the correct answer is 0.088, you are able to work these out on a calculator or without a calculator if you type in the exact sum that is given for harder questions like these!