One way is to multiply 3 and 7 in order to get 21 and then add 9 to 21 in order to get 30.
The answer is: -30
2+3+7+9+3=24
If Z = 3, then (9 + 7Z) = [ 9 + 7(3) ] = 9 + 21 = 30
37.5% of 30 is 11.25.(30%) - 10% of 30 is 3, so 3 x 3 = 9. Thus 30% of 30 is 9.(7%) - 1% of 30 is .3 so 7 x .3 = 2.1 Thus 37% of 30 is 9 + 2.1 or 11.1.5% - of 30 is .15. Thus 11.1 + .15 = 11.25. Thus 37.5% of 30 is 11.25.
30
9/10 =27/30 2/3 = 20/30 27/30 - 20/30 = 7/30
3.3333
34 - 7 - 9 = 34 - 16 = 18 3(7 - 4) + 9 = 9 + 9 = 18 (7 - 4) x (9 - 3) = 3 x 6 = 18
63 / × \ 7 × 9 / /\ 7 × 3×3
(9/10)/(3/7)=(9*7)/(10*3)=(63)/(30)=2.1
9/10 + 1/3 = 1 7/30
9/10 − 2/3 = 7/30