On her math test, heidi correctly answered 35 of the 40 questions. what percentage of the questions did heidi correctly answer?
a) 85%
b) 87.5%
c) 90%
d) 92.5%

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?