One fourth of the student in ms. sing's music class chose a guitar as their favorite musical instrument .there are 24 students in ms sing's music class. how many student chose a guitar as their favorite musical instrument ? what do you know? what do you need to find ?

We Need To Divide 24 By 4 To Find How Many Students Chose Guitar. 
24/4 = 6.
So, 6 Students Said That It Was Their Favorite.
We Know That There Are 24 Students, And That 1/4 Chose Guitar.
We Need To Find 1/4 Of The Class.

We know: 1/4 of Ms. Sing's student chose guitar, with a total of 24 students in the class. Doing mental math, we should be able to realize that 1/4 of 24 is 6, because if you divide 24 by 4 you get 6.

6 of her students play guitar.

We needed to find what fraction of Ms. Sing's class as a whole number plays the guitar.

A= r2 × 3.14 7x7 ↓ ↓ 49 × 3.14 = 153.86 → 153.9

Ibelieve it’s b? hopefully