How many solutions does this equation have: -9x+1=-9x+1

Adesigner charges a one time fee of $200 plus $40 an hour for each project. write an expression to represent how much money the designer will make for a project

The half-life of a certain material is 0.004 second. approximately how much of a 20-gram sample will be left after 0.016 second? a. 5 grams b. 16 grams c. 0.32 gram d. 1.25 grams

Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i