If path has 56 marbles and he gave Sandra 34 how many marbles will he have left?​

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Solve the equation for b: a= (1/2)(b)(h)

Plz : denver is about 5,200 feet above sea level. which number line best represents this integer?