Mark prepared 8 kilograms of dough after working 2 hours. How many hours did Mark work if he prepared 12 kilograms of dough? Solve using unit rates.

F(x) = (x^2 + 3x − 4) and g (x) = (x+4) find f/g and state the domain.

Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.