Jason needs to explain to his class how to use mental math to find the product of 400,000×50,000 how would u explain that

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.

Identify the number as a regional or irrational.explain. 291.87

Which container holds more,a half gallon milk jug or a 2 liter juice bottle