The basic cost of Kip’s airplane ticket with JetMath Airlines was $240. But the airline charges a fuel tax, so the total amount that Kip paid was $280.80. What percent of the basic cost of the ticket is the fuel tax?

Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.