There are 4 tables. students sit at each table evenly. there is two teachers assigned to the class. there are 21 students assigned to the class. using ‘s’ as your variable for students at each table, write the equation to determine the total number of students at each table in the classroom.

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

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.

Plz ( true - false) all triangles have interior angles whose measure sum to 90.