Aschool orchestra has 60 members. 20% of
members are percussionists, how many
orchestra members are percussion?

Tiffany drives 285,120 feet before lunch and 628,320 feet after lunch. about how many kilometers does she drive all together

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.

32a³b² 8ab² simplify the following expression.