5 pipes with the same water flow rate fill a cistern in 720 seconds. to fill the cistern in 1200 secs the number of pipes used is?​

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

For how answer my question this will be the last question can you answer in math subject

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?