1. Dei has $10 to spend on nail polish. With tax each bottle costs $2.49. Can Dei buy 3
bottles of nail polish?

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

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me