Order 0.4, 0.19, 0.42 in descending order

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x