working alone shanice can tar a roof in 12 hours. One day her friend Kathryn helped her and it only took 5.14 hours. How long would it take Kathryn to do it alone?

6.86

Step-by-step explanation:

you subtract the 5.14 from 12

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100