If the bill from the plumber is $162.50, how many hours did the plumber work at your house?

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

Given: klmn is a parallelogram m? n=3m? k, lf ? kn , ld ? nm kf=2 cm, fn=4 cm find: lf, ld

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)