1.
Express 0.0000072 in scientific notation.
7.2 x 10^-6
7.2 x 10^-5
72 x 10^-7
7.2 x 10^6
2.
If a mixture contains 20% alcohol and the rest water, how many ml of alcohol are in 250 ml of the mixture?
25 ml
40 ml
50 ml
75 ml
3.
If 3/4 of a number is 12, what is the number?
16
18
20
24
4.
If a bus travels at a speed of 50 miles per hour, how long will it take to travel 200 miles?
2.5 hours
3 hours
4 hours
5 hours
5.
A ratio of 3:5 is equivalent to what percentage?
30%
50%
60%
75%
6.
What is the value of 4! (4 factorial)?
16
24
120
256
7.
What is the square root of 225?
10
15
20
25
8.
What is the value of x in the equation x - 2 = 9?
7
11
12
15
9.
What is 3/8 + 1/4?
1/2
5/8
7/8
3/4
10.
Express 2,500,000 in scientific notation.
2.5 x 10^6
2.5 x 10^5
25 x 10^5
2.5 x 10^-6
Questions Answered: 0/10