If the ratio of purple to red bikes is 8 to 12 and there are 100 bikes, how many are purple

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Manny bought 12 pounds of vegetables at the supermarket. 75% of the vegetables were on sale. how many pounds of vegetables were not on sale? 98 points : )

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?