8) Ryan created a metal containing 68%
platinum by combining 5 lb. of pure
platinum with 4 lb. of another metal.
What percent of the other metal was
platinum?

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?