Please help me. This question is very hard me.

Sara sells beaded necklaces she makes a profit of 4 dollars pn every neclace she sells which table represents the profit sara makes

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy. how much will she pay after the discount

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?