At the store, you buy some pencils for $0.50 each and some pens for $1.50 each. you spend a total of $12 and purchase 16 items (pencils and pens only). (a) write and solve a system of equations that model the problem. show all your work. (b) how many of each type of writing utensil did you purchase? (write your answer in a complete sentence)

Match the vocabulary to the proper definition. in probability, two events in which 1. conditional probability the outcome of one event is independent of the outcome of a second event. 2. dependent events in probability, two events in which the outcome of one event is dependent on the outcome of a second event. the probability of an event in which the outcome of the event is conditional on the outcome of one or more different events. 3. independent events

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?

Solve for the equation. 4x - 13 = 2x + 9