Can someone please help me with number 2 I need this right so I don’t fail my class

If a • b*2 = 1.8 x 10*-7, and c•b/d = 7.2 x 10*-4, find the value of a•d*2/c*2

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need