Lily swims a 100-meter race. she swims the first half in 27.8 seconds. she swims the second half in 30.12 seconds. about how long does it take lily to swim the whole race? choose the best estimate.

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

What is the distance between a and b? round your answer to the nearest tenth. a coordinate plane is shown. point a is located at negative 1, 5, and point b is located at 4, 1. a line segment connects the two points.