Use of Numbers

A large flower bed lay near the entrance of the garden: most of the roses growing on it were white, but there were _____ red.
1. three
2. 3
_____ was the year when Lance Armstrong was named ABC's Wide World of Sports Athlete of the Year.
1. One thousand nine hundred and ninety-nine
2. 1999
3. One thousand nine hundred and ninety nine
Only two students in the class scored in the mid _____ on the final.
1. 90's
2. 90s
3. nineties
Rubik's Cube was invented in the _____ by the Hungarian sculptor and professor of architecture Ernő Rubik.
1. 1970's
2. 1970s
_______ participants signed up for the newest American Idol.
1. 10,000
2. 10000
3. Ten thousand
______ is a lot to pay for a gallon of gas.
1. $3.15
2. Three dollars and fifteen cents
3. Three dollars and 15 cents
4. Three dollars fifteen cents
I would like to order two books, not ______
1. 20
2. twenty
______ percent is a good interest rate.
1. 4 1/2
2. Four and 1/2
3. Four and one-half
My book collection includes ______ autobiographies, 20 novels and 100 short stories.
1. 5
2. five
Newer cars are more environmentally friendly and can achieve nearly ______ .
1. seventy mpg
2. 70 mpg