Brianna received the following test scores: 42/50, 80/100, and 75/90
She needs an average
of at least an 85% to qualify for a scholarship to U of M. What must be her
minimum score on her fourth and final test in order to qualify for the scholarship?

1) Change the fractions to percents :

2) Set up and solve your inequality:

3) Explain what your solution means for Brianna?