What is the product?
SELE
а-3 5
15а а-3
o 1
за
ООО
За
3

your answer would be 10x - 1

the answer is d

for problems like this theres an app, its photomath that explains the problem and gives the answer hope i

h * s * a

h = history teacher

s = science teacher

a =   art teacher.

i see no data table, but just multiply the number of history teachers, science teachers, and art teachers.