Help please I don’t understand why

Why was florance consterd the heart of the renassinance

To work on muscular strength, you should use a heavier weights and decrease repetitions b heavier weights and increase repetitions c lighter weights and decrease repetitions d lighter weights and increase repetitions its for fitness its for fitness

Which of the following statements is true regarding adolescent ethnicity and self-esteem? select one: a. teens of all ethnicities in the u.s. are likely to experience a brief increase in self-esteem as they transition into early adolescence. b. teens of all ethnicities in the u.s. are likely to experience a drop in self-esteem as they transition from childhood to early adolescence. c. ehtnic minority teens in the u.s. are likely to experience a drop in self-esteem as they transition from childhood to early adolescence.