The equation y=19x relates proportional quantities x and y. what is the value of x when y is 4?

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

Which statement about perfect cubes is true

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.