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?

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

Which expressions are equivalent to -7+3(-4e-3)? choose all answers that apply: choose all answers that apply: a -4(3e+4)? 4(3e+4) b 12e12e c none of the above