Sue has 18 sweets Tony also has 18 sweets
Sue gives Tony X sweet
Sue then eats 5 of her sweets
Tony then eats half of his sweets
Write expressions for the number of sweets Sue Antony now have

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?

Is the figure congruent? yes or no?