Twenty five cards labeled 1 through 25, are placed into a bag and shuffled. Troy randomly selects one card from the bag. What is the probability that Troy's card is a multiple of 5 or a multiple of 9? Enter your answer, as a simplified fraction, in the box.

step-by-step explanation:

5×5×5+2(8)÷2(2)+3(3)

15+16÷4+9

31÷13

do 31÷13 and u will get ur answer

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.