What of the following means how hard your heart and muscles are working during workout ?

In this model, what do p, s, and a bases represent?

Scientists believe that differences in cause hot, plastic-like rock in the asthenosphere to rise toward earth's surface. a. density c. weight b. magnetism d. composition select the best answer from the choices provided

Mr. thomas has an outstanding balance of $128.75 and owes a copay of $30.00 for today’s visit. how much money should be requested from mr. thomas at check out?