At Kaynem Daly High School, the Maths Club has 15 members and the Science Club has 12.
If a total of 13 students belong to only one of the two clubs, how
many belong to both clubs?

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

Write the rational number in lowest terms 99/-15

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?