Write the answers please

Dear Student,

a) i) when y = 2
x = 2y+5 = 9

When y = 3
x = 2y+5 = 11

When y = 4
x = 2y+5 = 13

When y = 5
x = 2y+5 = 15

A = {9,11,13,15}

ii) No, {1,2,4,16,64} is not equal to {x:x is a factor of 32} as 64 is not a factor of 32.

iii) 7x-3 = 11
7x = 11+3 = 14
x = 2
Therefore, B = {2}. As set B contains only 1 element, therefore, B is a singleton set.

Regards,