Stella predicted that she would sell 56 sculptures. she actually sold 30 sculptures. what are the values of a and b in the table below? round to the nearest tenth if necessary.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Me d is also an option but i couldn't get it in the picture

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.