Tony and tiffany collect semi-precious stones. at the rockhound hut, tiffany paid $38 for 9 pounds of
snowflake obsidian. at the solid rock shop, tony paid $19 for 3 pounds of the same type of stone. who
made the better buy?

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

Ten times the square of a non-zero number is eqaul to ninety times the number

You had $235 in your savings account nine weeks ago. you withdrew the same amount each week for 8 straight weeks. your balence was then $75. solve the equation 235 - 8m=75 to find how much money m you withdrew from your account each week. 2 points