Question 821053
It states "If the number of students in the computer class is c", so we have no choice but to make the declarative statement


Let c = number of students in the computer class



-------------------------------------------------------


Then it mentions that "The number of students in a math class is 10 more than three times the number in a computer class" which means


(number of students in math class) = 3 * (number of students in computer class) + 10


m = 3 * (c) + 10


m = 3c + 10



So the final answer is <font color="red">3c + 10</font> (Note: I made the implicit declaration that m = # of students in math class)