a) 4 times a number; 4(6) = 24
b) a number plus 8; (6) + 8 = 14
c) a number divided by 2; (6)/2 = 3
d) 7 added to a number multiplied by three; 7 + 3(6) = 25
e) 15 subtracted from 10 times a number; 10(6) -15 = 45
f) 8 times a number subtracted from 50; 50 - 8(6) = 2
I hope this helps!