Aflower garden has 12 sunflowers for every 45 irises. what is the unit rate for the number of irises per sunflower? explain how you found your answer.

7x+8y=-18, 4x-9y=-3 solve the system of equations

(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

Two lines parallel to the same plane are parallel to eachother