A curtain manufacturer uses a 909090-yard roll of material to make 777 identical curtains. There was 7.757.757.75 yards of material left over. How many yards were needed for each curtain?

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8

I'm confused on this could anyone me and show me what i need to do to solve it.