The time it takes Bill to read varies directly with the number of pages. Bill's data is shown in the table. If x = time, and y = the number of pages, which equation models Bill's direct variation?
A) y = 15x
B) y = 1.5x
C) y = 15 + x
D) y = 1.5 + x

1. during first 10 seconds 2. between 10 seconds and 35 seconds 3. during 35 seconds to 40 seconds

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Evaluate the expression for the given value of the variable 7a - 4a for a =8