How much simple interest is earned on 4000 in 3.5 years at an interest rate of 1.2 %?

Ineed in figuring out this problem.

The multiplicative property of equality states that for real numbers a, b, c, and d, if a = b and c = d, then ac = bd. true false

If you apply the changes below to the linear parent function f(x)=x what is the equation of the new function vertically stretched by a factor of 3 flip over the x axis