Sal earns $480 per week. Lidia earns $300 per week. If Sal works 40 hours per week and Lidia works 25 hours per week what are their ratios of earnings per week? Are their ratios equivalent?

Which number produces a rationale number when multiplied by 1/5

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

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?