Cybil read 3/10 h before breakfast, 9/20 h during the day, and 1 3/5 h after dinner?
how many total hours did cybil read?
express the answer in simplest form.

In the pendulum formula t=2pi. read the problem on the picture ! ; $; $; ! ; ! ; ! ; )$; ! ; ! ; ! ; $; $; $! ; ! ; ); $; $$

Mary works for a company that ships packages and must measure the size of each box that needs to be shipped. mary measures a box and finds the length is 7 inches, the width is 14 inches, and the height is 15 inches. what is the volume of the box? [type your answer as a number.]

True or false look at the picture pls : /