Jane writes numbers on 4 cards. the number has rubbed off the last card, but she knows that the mean of the numbers is 15 13 22 11 what number was on the 4th card?

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.

Adaycare center charges a $75 enrollment fee plus $100 per week. which of the following represents the cost of sending a child to daycare for 14 weeks?

How do you convert 1.27 to a percentage