I was supposed to meet up with my bf but things happened, I cant respond to texts when i am at home and he said how is he supposed to come thru if i dont respond and i texted him saying i was sorry but he didnt respond what did i do and how can i fix this and why would he not be responding? this is really important to me

A. hannah wants to improve her cardiorespiratory fitness levels, so she begins to alternate running on a flat track with running up stadium stairs. this principle is known as a type b tedium c time d frequency 2. charlie is easily winded during soccer practice and wants to improve his cardiorespiratory fitness. which activity would be best for him to choose? a lifting weights b walking from one class to another c running in a 5k race d riding a bike at a leisurely pace 3. felicia just began running this past month, but since she continues to run the exact same route and exact same distance every day, she is growing bored with her runs. this principle is known as a tedium b progression c specificity d reversibility