Otto broke his piggy bank and 89 coins fell to the floor. The coins were either nickels or quarters, and after counting the money he had $12.05. How many quarters were there?

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.