Savage, Sarrah-Lee Day 1 1 1 of 12
Il Pause
A candle loses height as it burns at a constant rate of 3 cm every 12 minutes. If the initial height of the candle is 15 cm, what is the
percent decrease in height after it burns for 30 minutes?
A 20%
OB. 40%
C. 50%
D. 80%
9:48

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%.

:malik received a $300 gift card from his grandparents and is using it only to pay for his karate lessons, which cost $30 per month. determine what amount, in dollars, remains on the card after 8 months.

Lines a and b are perpendicular. the equation of line a is y=13x+3. what is the equation of line b?