William recorded the grade-level and instrument of everyone in the middle school School of Rock below. Seventh Grade Students
Instrument# of Students
Guitar8
Bass8
Drums7
Keyboard2
Eighth Grade Students
Instrument# of Students
Guitar12
Bass2
Drums10
Keyboard5

Based on these results, express the probability that a seventh grader chosen at random will play an instrument other than guitar as a decimal to the nearest hundredth.

The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation