Mary's current record for her swimming race is 120 seconds. if she can reduce her time by 5%, how many seconds less will that be?

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

How to solve a simultaneous equation involved with fractions?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label