Mrs. lutz has a budget of $30/month for lunch. most days she likes to bring her lunch, however she can also buy it at the cafeteria for $3 or subway for $4. how many times a month can she buy her lunch and still stay within budget?

(98 points) i need with 5 questions. answer definitions are welcomed, but not necessary.

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

Calculate the density of benzene if 300ml of it weighs 263g. a. 0.88 g/ml b. 1.14 g/ml c. 78,900 g/ml d. 37 g/ml