The director of the regional spelling bee wants to charge a small fee to cover the contest costs. The total cost to put the event is about $195. If there are going to be approximately 65 participants , how much should each person be charged to cover the costs of the day

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Need this at the city museum, child admission is 6 and adult admission is 9.20. on tuesday, 132 tickets were sold for a total sales of 961.60. how many adult tickets were sold that day?

Prove that 16^4-2^13-4^5 is divisible by 11.