A.) 384
B.) 400
C.) 456
D.) 460
E.) 576
Algebra House 

When a number is increased by 20%, the result is 480. What was the original number?
A.) 384 B.) 400 C.) 456 D.) 460 E.) 576
If 2x + 3y = 4 and 5x + 6y = 7, what is the value of 8x + 9y ?
A.) 10 B.) 1 C.) 2 D.) 7 E.) 10
In the standard (x,y) coordinate plane, an equation of a circle is x² + y² = 64. At what points does the circle intersect the yaxis?
A.) (0,1) and (0,1) B.) (0,8) and (0,8) C.) (0,9) and (0,9) D.) (0,10) and (0,10) E.) the circle does not intersect the yaxis
If f(x) = x² + 3, then f(x + y) = ?
A.) x² + 2xy + y² + 3 B.) x² + 2xy + y² C.) x² + 2xy + 3 D.) x² + 3 + y E.) x² + y²
Which ordered pair is a solution of 3x  y < 20 ?
A.) (7,1) B.) (5,6) C.) (8,0) D.) (1,4) E.) (10,5)
For which of the following values of x is f(x) = x² + 11 negative?
A.) 4 B.) 3 C.) 2 D.) 1 E.) 3
The measures of two angles of a triangle are x and 4x. Which of these expressions represents the measure of the third angle?
A.) 180 + x + 4x B.) 180  x  4x C.) 180  x + 4x D.) 180 + x  4x
Jorge's current hourly wage for working at Denti Smiles is $12.00. Jorge was told at the beginning of next month, his new hourly wage would be an increase of 6% of his current hourly wage. What will be Jorge's new hourly wage?
A.) $12.06 B.) $12.60 C.) $12.72 D.) $18.00 E.) $19.20
On a particular road map, 0.5 inch represents 18 miles. About how many miles apart are two towns that are 2.5 inches apart on the map?
A.) 18 B.) 22.5 C,) 36 D.) 45 E.) 90 
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