Which improper fractions is equal to the mixed number 6 3/8

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

On friday, there were x students at the baseball game. on monday, there were half as many students at the game as there were on friday. on wednesday, there were 32 fewer students at the game as there were on friday. which expression could represent the total number of tickets sold for all 3 games?