Write an expression for 378 fewer than the quantity 382 times h.

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?

I’m still confused on how to work the percentages

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)