Can someone help me with Question 13 and 14. The questions and the directions are shown in the photo attached right here:

What number produces an irrational number when multiplied by -1.25

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

Given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), what is d if c c' = 12 and d' = 0.50? a) 3 b) 6 c) 12 d) 24