Rewrite 4/8 : 1/4 as a unit rate pls help

Which represents the inverse of the function f(x) = 4x? h(x) = x + 4 h(x) = x – 4 h(x) = x h(x) = x

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

What power can you write to represent the volume of the cube shown? write the power as an expression with a base and an exponent and then find the volume of the cube