Write the following expression without negative exponents and without parentheses. -4x^-3

Sara needs to take a taxi to get to the movies the taxi charges $4.00 for the first mile and then $2.75 for each mile after that if the total charge is $20.50 then how far was sara’s taxi ride to the movie

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?