It takes gary 1 hour to milk all the cows, and it takes dana 1.5 hours. how long will it take them to do the job together? explain all the steps and models/equations used. so much.

Which of the following is the result of expanding

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2