Which expression calculates the time in hours an object takes to travel 38 miles at a speed of 2 m/h ?

38+2

382

38−2

38⋅2

Find the radius of a circle that has a circumference of 16. the formula for the circumference of a circle is c = 2tr, where r is the radius and c is the circumference. the equation solved for r is r = c over 2π. r=4 r= 8 r=12 r= 16