## MATH 111 Week 1 Quiz | Assignment Help | University of Washington

MATH 111 Week 1 Quiz | Assignment Help | University of Washington

Activity 7: Percentage Change and Proportionate Change

Question 1

If your current annual salary is \$48,500, what is your annual salary after a 3% raise?

Question 2

Again, assuming a current annual salary of \$48,500, what is your annual salary after receiving a 3% raise each year for two years?

Question 3

You start a new job with a starting salary of \$55,000 and a 2% cost-of-living raise each year.

True or False?  If you receive no other raises, your salary after 4 cost-of-living raises will be exactly an 8% increase from your current salary.

Question 4

You inherit a diamond ring appraised at \$8000.  Diamonds are expected to appreciate by 7% per year.  What would you expect it to be worth 1 year from now?

Question 6

You plan to buy a TV that is regularly priced at \$625.  The store is offering 25% off every product in the store.  What is the sale price of the TV?  (You can still use the formula

Question 7

The population of a town was 6000 people in 2010 and 7110 in 2018.  What was the percentage change in the population during that period of time?

Question 8

A pair of shoes that regularly costs \$112 is on sale for \$95.20.  What percent savings is this?  (Again, your proportionate change will be negative but you can express your answer as a positive savings; e.g., if p=−0.11,p=−0.11, then you can call this an 11% savings, expressing the negative with the word "savings.")

Question 9

A house purchased for \$350,000 in 2004 sold for \$680,000 in 2017.  What was the percent change in its value?

Question 10

A collectible lunchbox increases in value by 1.2% per year.  If it is worth \$174 a year from now, what is its value today?