Book
Maths Puzzle
Algebra
Vincent can read five pages in 15 minute. Which proportion can be used to figure out how long it will take him to read a 23-page pamphlet?
15 to 5 = 23 to X
5 to X = 15 t
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Book Other Question
John likes 400 but not 300; he likes 100 but not 99; he likes 3600 but not 3700. Which does he like?
A:900
B:1000
C:1100
D:1200
I don't understand how to graph this equation--
y=-3xsquared
&
y=-5xsquared + 10
I know how to get the x-coordinate, but not the y-coordinate,