The sum of a number and it's reciprocal is 2.9. what is the number?

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

What is y times x by? y is __ times x

The cost varies directly with the number of tickets purchased. it costs $145 for 10 people to attend a concert. a. what is the constant of proportionality (k)? b. write the direct variation equation. c. home much does it cost for 8 people? d. graph this situation. be sure to label each axis and give the graph a title.