Team tool bells finished the last 12 miles in 1/3 of an hour. what is there average speed in miles per hour

Can someone me with the property questions for 12 13 and 14 plz

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points

Enter the answer and show all the steps that you use to solve this problem in the space provided. the stem and leaf plot shows the heights in centimeters of teddy bear sunflowers grown in two different types of soil.