On a 88 question leebeth missed 11 questions. what is her exact grade for that test? tell me the answer in percentage

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.