What is the round to the biggest place value 792
and how calculating this

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Ill mark the brainliest if you me with the these three questions 7,8,9

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective