1) In the xy plane, does the line with equation y = 3x+2 contain the point (r,s)

a) (3r+2-s)(4r+9-s)=0
b) (4r-6-s)(3r+2-s)=0

Also: Any easy way to solve this question?

OA: C

2) What is the hundredths digit of the decimal z?

a) The tenths digit of 100z is 2
b) The units digit of 1000z is 2

OA: E

3) For every positive integer n, the function h(n) is defined to be the product of all the even integers from 2 to n, inclusive. If p is the smallest prime factor of h(100) + 1 , then p is between :

a) between 2 and 10
b) between 10 and 20
c) between 20 and 30
d) between 30 and 40
e) greater than 40

OA: E