You have $200 in a savings account. each week for 8 weeks, you take out $18 for spending money. how much is in your account at the end of 8 weeks

After 8 weeks, you'd have $56.00 in your bank account.

Step-by-step explanation:

18 * 8 = 144

After 8 weeks, you spend $144.

$200 - $144 = $56

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

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads