The times per workout an athlete uses a stair climber are normally distributed with a mean of 20 minutes and a standard deviation of 5 minutes. What percentage of athletes use the stair climber for less than 18 minutes?
a) 34.46%
b) 48.40%
c) 51.60%
d) 65.54%​

step-by-step explanation:

0

you would have to sell 24 bracelets.

step-by-step explanation:

84/3.5 = 24

it is true

step-by-step explanation:

all the combinations add up i used   calculator

hi there!

first we need to find out how much they are adding to each number to make the next number.

ex: 4 + 4 = 8, 8 + 8 = 16, and so on.

so continuing with 32,

32 + 32 = 64

64 + 64 = 128

128 + 128 = 256

256 + 256 = 512

4, 8, 16, 32, 64, 128, 256, 512

the 8th term of the sequence will be 512

hope this ! ~