The function c(t) =
5t
0.1t + 3.3
models the amount of a drug in a persons bloodstream over a period of time. what is a reasonable range for this function?

Write an equation of the line given the two points below (write your equation in slope-intercept form, y=mx+b): (-4, 4) and (6, -4)

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20