Quinn went to the coffee shop traveling 9mph and returned home traveling 15mph. The total trip took 8 hours. How long did Quinn travel at each speed?

The equation y=mx+b is the slope-intercept form of the equation of a line. what is the equation solved for b? y-m=b y-mx=b y/mx=b y/m-x=b

Me with this one question, and i'll upvote the brainliest answer

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items