Kelly bought cups for home. Each cup cost $3. He gave $40 to the cashier and got $13 back in change. How many
cups did she buy?

How many bananas are in a fruit bowl that has 200 total apples and bananas if there are 31 bananas for every 93 apples

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

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?