Need fast, !
can someone tell me the greatest common factor of these:
1)40,24
2)30,20
3)12,20
4)36,42
5)40,16
6)40,48

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)

How many ordered pairs of positive integers satisfy xy=32?