Need
the graph of g(x) is the graph of f(x)=5x+15 compressed horizontally by a factor of 15.

which equation describes the function g?

g(x)=25x+75

g(x)=x+15

g(x)=25x+15

g(x)=x+3

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Which of the following parabolas opens up?