The sum of 2ab^2 and (-5ab^2) is the same as the sum of (-6ab^2) and

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?