The total number of students is 76, this represents the 100%
To determine how many students have a b+, considering that they represent the 23.7% of the students you cann apply cross multiplication:
100% ______76
23.7%______x
![\begin{gathered} (76)/(100)=(x)/(23.7) \\ x=((76)/(100))\cdot23.7 \\ x=18.012 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/tegi1dzhegn94ow6hfxp6peyf7nuqg0z2v.png)
18.012 students have a b+ or higher grade.