Select whether each function is linear or nonlinear Y=9(2x)
Y=(5x+3)^2
Y=8x^2
Y=5x-3
Y=3x^2+2x-1

If I put ^ before a number it means it's an exponent if anyone doesn't know

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

Of to(3, 4) (2,1) (3,7) (5,2) (5,-2) (3, 3) (-2, 3) (1,2) (-4,-2) (-3, 1) (4, -1) (-1, 1) 10 v 29

If a=0.333333 and b=0.55555, what is the value of a+b