how much would a 80.0kg person weight on
mars, where the acceleration of gravity is 3.93 m/s²
and on earths moon, where the acceleration of
gravity is 1.63 m/s²?

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72

soo this can be solve by using the formula:

f = p( 1 + i)^ n

where f is the future profit

p is the initial profit

i is the percent increase

n is the number of years

a . f = 30000 ( 1.05)^n

b. f = 30000 ( 1.05)^15

f = $62,368