Write a function rule for "The output is 5 less than four times the input." Use x for the independent variable and y for the dependent variable. y = ?​

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

For g(x) = 5x - 3 and h(x) = [tex]\sqrt{x}[/tex], find (g · h)(4)

Which is the focus of a parabola with equation y2=4x