How many different 4 letter arrangements can be formed from the letters in the word cards

Ineed i been stuck on this question since yesterday

The measure of an angle is 117°. what is the measure of a supplementary angle?

The four students in the table below each recorded the time and distance traveled while exercising. exercising distance (miles) time (minutes) gia 2 30 harris 5 50 ian 3 40 jackson 4 80 which list ranks the students from fastest walker to slowest walker? jackson, gia, ian, harris harris, jackson, ian, gia harris, ian, gia, jackson jackson, harris, ian, gia