Tt = 3.14
what is the area of this shaded portion?
(use 3.14 for 1.)
select the correct answer
48.4 m2
15 m
49.1 m 2
128.3 m2
177.9 m2

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.