Algebra
Solve for x: 4x - 9 = 15
x = 6
Evaluate: -6 + 9 - 2
1
If f(x) = x - 2, find f(5)
3
Area of triangle with base 10 and height 3
15
Tom has twice as many marbles as Lee. Together they have 18. How many does Lee have?
6
Simplify: (x + 5)(x - 2)
x2 + 3x - 10
What is |-8| - 10?
-2
If g(x) = 3x^2 + 2, find g(2)
14
Volume of cube with side 6
216
A number decreased by 5 is half itself. What’s the number?
10
Solve: x2 - 8x + 12 = 0
x = 2 or x = 6
Simplify: -32 + 6
-3
What is x if f(x) = 4x + 1 and f(x) = 17?
x = 4
Circumference of circle with radius 6 (Ï€ = 3.14)
37.68
Three times a number plus 2 equals 20. Find the number.
6
Factor: 2x2 - 18
2(x - 3)(x + 3)
Evaluate: [(-4)2 - 2(3)]
10
If h(x) = x2 + x, find h(2) + h(-2)
8
Area of trapezoid with bases 7 and 9, height 4
32
4 bananas and 3 apples cost $2.30. 2 bananas and 5 apples cost $2.90. Cost of one banana?
$0.40
If 3(x - 2) = 2x + 7, what is x?
x = 13
Evaluate: [-22 + 3(-3)] - (|5 - 9| * 3)
-22
If f(x) = x2 - 2x + 1, find f(f(1))
f(0) = 1
Circle inscribed in square has area 36pi. Find squares perimeter.
48
Double a number minus 4, then add 6, equals 20. What's the number?
9