If a+b-c=3 what is the value of 4(a+b-+b+3c)?

(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

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

Explain how you do each step what term makes it inconsistent y=2x - 4 ?