A direct variation function contains the points (-9,-3) and (-12,-4). Which equation represents the function. y=-3x
y=-x/3
y=x/3
y=3x

Pick the description of a geometric object that best matches the real world object box for a deck of card

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Precalculus question, image attached.