In a sale the normal price of a book is reduced by 10%. The sale price of the book is £4.86
Calculate the normal price of the book.

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

Which diagram shows lines that must be parallel lines cut by transversal?