Katy perry has $180 and is spending $6 per day Gaga has no money but earns $8 a day
Equation and how many days will they have same amount of money

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute