Translate the phrase into an algebraic expression.
four less than the amount of cents in a number of dimes
10n-4
Simplify
4(3/8) * -3(3/7)
-15
Simplify
16 5/6 -12 1/3
4 1/2
Express the following in scientific notation.
56,300,000
0.0000095
5.63 x 107
9.5 x 10-6
The diameter of Mars is about 7 x 106 meters. A standard table tennis ball is 0.04 meter in diameter. About how many times greater is the diameter of Mars than that of a table tennis ball?
~ 1.75 x 108 times greater
$97.50 for 15 pizzas
1 pizza for $6.50
Determine if the following set of numbers is proportional.

No; the rates are not equal.
The classrooms at Clyde Boyd Junior High are painted every summer. If 7 gallons of paint are needed to paint 4 classrooms, how many gallons of paint are needed to paint 16 classrooms?
28 gallons
16 is 25% of what number?
64
Find the percent of change to the nearest tenth. Then state whether the percent of change is an increase or decrease.
From 82 feet to 74 feet
-9.8%; decrease
Find the sale price of a bike that is regularly $110 and is on sale for 45% off the original price.
$60.50
Find the total amount in the account if $3850 is invested for 2 years at a rate of 5.25% compounded annually. Round to the nearest cent.
$4264.86
Simplify
4a - 6 -2(a - 1).
2a - 4
Factor 32 + 24x.
Solve
1 7/8y=4 1/2
2 2/5
Solve
19 = 3 - 3d - 5d.
-2
Solve
18 = 9/10(x - 1)
21
Solve
2/5C +4/5C -6 = c + 7
65
Solve and graph the following inequality.
2(n - 5) ≤ -7

n <= 1.5
State the slope and y - intercept of the function. Then describe how you would graph the function.
-9x + y = -5
y = 9x - 5
m = 9; b = -5
To graph, goes down 5 on the y - axis and make a point. Starting at (0,-5) go up 9 and over 1 to the right and make another point. Connect your points extending the line.
Write the 3 rules for counterclockwise rotations.
90° (x, y) --> (-y, x)
180° (x, y) --> (-x, -y)
270° (x, y) --> (y, -x)
How do you know if an answer has one solution, no solution, or infinite solutions? (state how you know for each; example + label each)
One solution: x=2
No solution: -1=5
Infinite solutions: 7=7
Given the similar figures, find the missing side labeled x.

x = 27
What are the formulas to calculate the following:
Area of a Triangle
Area of a Circle
Circumference of a Circle
Area of a Trapezoid
Triangle: 1/2bh
Trapezoid: 1/2h(b1 + b2)
Area of a circle: pi r^2
Circumference of a Circle:
C = 2pir; pid
Find the area of the composite figure.

7.3mm2