what is the minimum number of points required to mark all maximum, minimum, and zeros in a period of a sinusiod?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Mrs. chibas is making chocolate chip cookies for her daughter's class. she bought a tub of chocolate chip cookie dough that contained 57.6 ounces of dough. if each cookie needs 1.2 ounces of dough, how many cookies can she make

The number of students who ride a school bus is 110% of the number of students who walk. how many students ride the school bus?