At a recent party, it cost $9.50 for refreshments for 10 guests. at this rate, how much would it cost to have refreshments for 80 guests?

Here is my question! jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?

If 7x=9y, y/z = 7/5 , then x/z = (a) 2/7 (b) 7/9 (c) 9/5 (d) 9/7 (e) 5/9

Find the value of the variable and the length of each chord for #5 and #6.