1. Math
2. Mathematics
3. 1 find the amount on the original price tag on...

# Question: 1 find the amount on the original price tag on...

###### Question details

1. Find the amount on the original price tag on a shirt, selling for $25.50 in a sale offering a 25% discount? i know the asnwer is 34 but i dont know how. 2. What is the length of the diagonal of a square with side length 8 cm ? Give your answer correct to 1 decimal place. asnwer:11.3 3.A photocopier is bought for$20 000 and depreciates in value by 6% each year. What will the value of the photocopier be after 8 years?

asnwer:12191.38

4.Lachy invests $100 000 for 4 years into an account which pays an annual interest rate of 12% compounded quarterly. (a) Find the amount in the account at the end of the 4 years. answer:160470.64 (b) Find the interest earned. answer:60047.64 5.A real estate agent earns 212$2\frac{1}{2}$% commission on the first$250000 of sales and 114$1\frac{1}{4}$% on the remainder. When he sold a house he earned \$11 250 in commission. Form an equation and hence find the selling price of the house.

asnwer: 650000