Maria purchased 2 pairs of earrings and 4 necklaces for $29.00. Kelly purchased 3 pairs of earrings and 2 necklaces for $21.50. How much would 1 pair of earrings and 3 necklaces cost?

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

answer4 to the second power is 16

and 4 to the third power is 64,

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation:

a.)the line for function b is steeper