Answer:

Step-by-step explanation:
Simple interest is where interest is only accumulated on the principle, so at 4.5% for 5 years, 22.5% is added to the principal.
Answer:
700%
Step-by-step explanation:
504/72 = 7
7 * 100 = 700
.86, 7/8, .9 is least to greatest
Answer:
x=50
Step-by-step explanation:
The total number of angles in a quadrilateral is 360.
<em>set the expressions you have as equal to 360</em>
(x+10)+3x+2x+x = 360
<em>collect the x terms together</em>
7X + 10 = 360
<em>subtract the 10 to get just "x"s on one side</em>
7X = 350
<em>divide by 7 to get X alone</em>
x = 50