Assuming you meant (-20) - 90 your answer is -110.
If the question was 20 - 90 then your answer is -70.
72 is an increase of negative 20% compared to 90.
70
3.5 multiplied by negative 90 = 3.5 * (-90) = -315
-90 (when you add a negative you simply subtract so -40-50 is -90)
Negative 8 minus 12 is negative 20.
20-90 = -70
9/20 = 90/200 9/20 = 90/200 9/20 = 90/200 9/20 = 90/200
70
what percent of 90 is 20? The answer is 22.2222222
negative 30
The product is: negative 90
65 + 65 + 65 + 90 + 90 + 90 + 90 + 50 + 50 + 50 + 50 + 50 + 50 + 20 + 20 + 20 + 20 + 20 + 20 + 20 = 995