The perimeter of the triangle shown is 28 meters. what is the length of the longest side ?

The graph of f(x)=|x| is reflected over the y-axis and horizontally compressed by a factor of 1/9. write a formula for function g(x)

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

What is the number 321,000,000 in scientific notation? also what is the number? ?