10. The ratio of blue marbles to red marbles in a bag is 12:7. If there are 60 blue marbles in the bag, how many red marbles are there?

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

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?