Evaluate the expressions when x = 5, y = -3, and z = -2.
(x - 5z)/y
-5
100
Simplify the expression.
8x - 5 + 2x
10x - 5
100
Find the unit rate:
2 2/5 kilometers in 3 3/4 minutes
16/25 or 0.64 km/min
100
Two angles are complementary. One of them is 56 degrees and the other one is (x + 6) degrees.
Find the value of x.
x = 28
100
What is the probability of rolling a multiple of 3 on a fair number cube?
1/3
200
Find the mean of the integers:
11, -7, -14, 10, -5
-1
200
Subtract the expressions:
(2r - 13) - (-6r + 4)
8r - 17
200
Five movie tickets cost $36.25. What is the cost of 8 movie tickets?
$58.00
200
A quadrilateral has angles measuring 110, 96, 84, and x degrees.
Find the value of x.
x = 70
200
You roll a fair number cube and flip two coins. What is the probability of rolling an even number and getting tails for both coins?
1/8 or 12.5%
300
Multiply.
3 9/10 * (-8/3)
-10 2/5 or -52/5
300
Solve the equation:
2(x + 1) = -2
x = -2
300
What percent of 28 is 21?
75%
300
Find the area of a circle with a 42 mm diameter.
Keep answer in terms of pi.
441*pi mm^2
300
How many combinations are possible with 7 pairs of socks, 5 pairs of pants, and 11 shirts?
385 combinations
400
Divide.
-1 5/6 divided by 4 1/6
- 11/25
400
Simplify the expression:
3/4 (8p + 12) + 3/8 (16p - 8)
12p + 6
400
Find the percent of change:
$24 to $18
25% decrease
400
Find the surface area of a rectangular prism with dimensions 5 ft, 2 ft, and 3 ft.
62 ft^2
400
You have 11 pop, 3 rap, 2 country, and 4 rock songs in your playlist. If you shuffle the songs, what is probability that the next song will not be rap?
17/20 or 85%
500
How many 2.25-pound containers can you make with 24.75 pounds of almonds?
11 containers
500
Solve for k:
(2/7)k - 3/8 = -19/8
k = -7
500
After a 20% discount, an item is on sale for $75.
What was the original selling price?
$93.75
500
Find the height of a cylinder with a 2 cm radius and volume of 12*pi cm^3.
h = 3 cm
500
There are 14 girls and 12 boys in a class. The teacher draws three names in a row without putting names back. What is the probability that all 3 students chosen are girls?
(Answer must be a simplified fraction.)