Astore sold 70 copies of a magazine for $350. each copy of the magazine costs the same. which equation and set of ordered pairs best represents the price (y), in dollars, of a certain number of copies (x) of the magazine? a. y = 3x; (1, 3), (2, 6), (3, 9) b. y = 4x; (1, 4), (2, 8), (3, 12) c. y = 5x; (1, 5), (2, 10), (3, 15) d. y = 6x; (1, 6), (2, 12), (3, 18)

The answer is C 5x I took the test and got it right.

Step-by-step explanation:

5x means multiply 5.

C: 1 x 5=5  2 x 5 =10 3 x 5 = 15

Have a great day.

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560