Terence's Textbook Questions 6,7, and 4

Question 6

A store discounted items by 50% off the original price one week. The following week an additional 10% was taken off the already reduced price. The regular price of a CD player was $85.00. What is the reduced price in the second week?

50% off $85.00 85.00 Divided By 2=42.5

42.50 Divided By 10=4.25

42.50-4.25=38.25

Question 7

There's 100 Caribou, 1 day the herd increases by 10% and another day the herd increases by 10% again what is the, herd number?

100+10=120

120+10=130

I added 10 by 100 which =120 and I did it again which =130

Question 4

Chris purchased the following items:
• 2 binders at $4.99 each
• 1 math set for $3.99
• 1 backpack for $19.99
Find the total cost including 5% GST and 7% PST.

4.99x2=9.98

9.98+3.99=13.97

13.97+19.99=33.96

0.12x33.96=4.08

4.08+33.96=38.04