Arunner runs around a track consisting of two parallel lines 96 m long connected at the ends by two semicircles with a radius of 49 m. she completes one lap in 100 seconds. what is her average velocity?

This question awards 100 ! i really don’t want to fail i will also mark you !

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of