The sum of three consecutive numbers is 60

P= $1400,300 r = 7 1/2% t = 4 what is i ? $4.29 $429.00 $4290.00

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

Aculinary club earns $1360 from a dinner service. they sold 45 adult meals and 80 student meals. an adult meal costs twice as much as a student meal. what is the cost of an adult meal?