1. We are now going to solve real world problems

2. The speed of light is 3 x 108 meters/second. If the sun is 1
The speed of light is 3 x 108 meters/second. If the sun is 1.5 x 1011 meters from the earth, how many seconds does it take light to reach the earth? Express your answer in scientific notation.

3. A circular swimming pool holds 1. 22 x 106 cubic inches of water
A circular swimming pool holds 1.22 x 106 cubic inches of water. It is being filled at the rate of 1.5 x 103 cubic inches per minute. About how long will it take to fill the swimming pool?
Math Connects Plus Grade 8 Pg. 309

4. Terry bought
pounds of grapes that cost $2.00 per pound. What was the total cost of the grapes?
Math Connects Plus Grade 8 Pg. 41

5. The radius of a circle with area A is approximately
If a pizza has an area of 78 square inches, estimate its radius.
Math Connects Plus Grade 8 Pg. 319

6. Michael deposits $20 into his savings account each month
Michael deposits $20 into his savings account each month. He wants to increase the amount he deposits by 25% each month until he is depositing at least $50 per month. In what month will he deposit at least $50?
Math Connects Plus Grade 8 Pg. 60

7. Math Connects Plus Grade 8 Pg. 71
Colin is borrowing money from his parents to purchase a $700 computer. He will pay them $35 per month for two years. Determine the simple interest rate on Colin’s loan.

8. The projected number of household trips in 2010 is 50,000,000
The projected number of household trips in 2010 is 50,000,000. About 14,000,000 of these trips will involve air travel. What percent of the trips will involve air travel?
Math Connects Plus Grade 8 Pg. 56

9. Students receive a 20% discount off the price of an adult ticket at the movies. If a student ticket is $6.80, find the price of an adult ticket.
Math Connects Plus Grade 8 Pg. 67

10. In the United States, the average height of a 9-yea- old girl is inches.
a 16-year-old is
inches. How much does an average girl grow from age 9 to age 16?
Math Connects Plus Grade 8 Pg. 35