There are 70 students in math class (Group A) class, and 40 of them are also taking biology (Group B) course. The total students in biology (Group B) are 60. There are 25 arts (Group C) students in the department, and 10 of them are taking math.

Define how many people there are:

a) A or B, b) A and B, c) C xor A, d) B or C

There is no image, or it's not working.

It’s hard to understand what you put.. can you show a picture ?

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?