Dora drinks a 12-ounce can of cola. Erika drinks half of a 20-ounce bottle of cola. How many more ounces of cola does Dora drink than Erika?
2 ounces
What is the result when one hundred twenty-eight thousand is subtracted from one million?
872,000
What is the value of (7 × 2) − (3 × 4 + 2)?
0
What is the tens digit of this sum?
12,345
+56,789
3
What is the 40th positive odd integer?
79
A bicycle that originally cost $200 is on sale for $140. By what percent was the price reduced?
30%
If a fair coin is tossed four times, what is the probability of it landing heads up at least three times? Express your answer as a common fraction.
1/16
Given that a mile equals 5280 feet, how many inches are in one-sixth of a mile?
10,560
Stefani went to the store to buy 3 chocolates for each of her 5 classmates. While shopping, she decided instead to buy 5 chocolates for each classmate. How many additional chocolates does she need to buy compared to her initial plan?
10
What is the side length of a rectangle that has width 7 inches and area 105 square inches?
15 inches
If (x 2y 3)2 = x ay b , what is the value of a + b?
10
If x + y = 5 and x 2 − y 2 = 15, what is the value of x?
4
What integer is closest to −7π?
-22
If 36 x + 1 = 68 , what is the value of x ?
6
If n is an integer for which the greatest common factor of n and 18 is 6 and the least common multiple of n and 9 is 126, what is the value of n?
42