Checking granddaughter homework not very good with math

amy said that the perimeter of the triangle below is less than 10 yards. do you agree with her? why or why not?

The graph shows the function f(x) = (2.5)x was horizontally translated left by a value of h to get the function g(x) = (2.5)x–h.

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.